Just as openly elitist power abuser Stolas is the best villain of either series in this Helluverse, Mammon manages to be the greatest sin of all and for a similar reason, being multifaceted via many efforts made to sway our thinking, yet these two are then taken in different directions.
So much range does 'greed' have that he even encapsulates the 'sins' we have yet to meet.
Of those we have met, Ozzie, Bee and over in Pride, Lucifer, Mammon has managed to showcase actions of their sins in his own greedy way. Greed has a bit of everyone, but vise versa? Not if they're supposed to be liked.
A totally desexualised character but blamed for the sexdolls of a famous character whoes 'dayjob' is entertaining at a kinky nightclub, run by the prince of lust. Even though he markets the dolls as multipurpose, fit for everyone at a very affordable price, the sex element is his fault. The dolls were clearly a collaboration and something thought up before a reference was chosen, Ozzie catches feelings for their references and feels he should no longer able to separate business from his personal feelings, whilst Mammon manages to prosper in business in a field that isn't his.
A glutton for the sake of being a glutton, no need for celebration just mindless or stress eating, which fits well as greed and gluttony often go together, taking because it's there.
There's also the deliberate fat design intended to make him more grotesque. 'Gluttony' does not need to be fat, yet the 'Gluttony' we met simply wanted the party goers indulged, however Ozzie wanted his patrons to keep it sexy and Mammon collected cash during the pageant, they did as much as eachother, only the efforts to make him piggish only took away from Bee's thing.
Showy and performative but happy to take the backseat, is seen working and mentoring, adapts to what's new, what works and what others want but also bold enough to openly share selfish motive. As involved and inappropriate as his behaviour may seem he's all business, willing to work with those who don't like him and invest in what doesn't interest him without buckling or offsetting.
Mammon succeeds as a ruthless, confident, both proactive and passive leader who doesn't come across as someone who casually hangs with 'commoners' and whose true influence and power is unknown.
Way too attentive to be lazy, but, what do people have to say about a boss who puts their feet up and fails to do what they're more than capable of doing, rather, they get others to do? Mammon supposedly 'not doing clown stuff anymore' and Fizz being 'a better clown than he ever was' as according to Ozzie are statements that means little, he wanted a prodigy, we saw imagery of training arc he showcases entertainers in order to fulfil his greed and his trade gets acknowledged. Ozzie has a seedy nightclub where those who work their or visit are expected to behave in a sexy way and Bee expects her guests to indulge, what's the difference? They meet their sin quota whilst not showing us any form of trade outside of being a host, why is Mammon condemned for as in a leading example of laziness? If we're scaling laziness, where does this leave poor, yet to be introduced Belphahor?
Relaxation pairs with recovery, research shows that the Sloth ring has the hospitals and is also responsible for 'upper' medication. Nice right? Something positive, which is where all those we are to like lean towards. That and Bee seems to be friends with her.
Spring boarding onto the next sin, Wrath, someone who has been described as attractive (by Bee) and is seen as a leader and god to the imps. It helps to be liked. This is hell where anything supposedly goes, murder is fine but not sadness, sadness isn't a sin but what else is everything, irate. Mammon was allowed to not only be big and menacing but pose a threat to someone who would be frightened of their fallout, allowed to resort to blackmail when he didn't like how things were going and allowed to vow revenge before taking off and trashing the place and maybe even killing his audience who bore witness on his way out, in a rather composed way.
Looloo land being a ripoff of Lulu land is so clearly a display of greed, especially since Looloo land is poorly maintained dispite Mammon being a perfectionist, this ripoff could easily be an example of envy, a grasp at control born from following a definitive leader who seems no leader at all, but can do what he wants because this is his realm.
Wlillingness to rip off such a superior, block effort at takedown with an impenetrable contract and still maintain (according to research) a good relationship with shows caution, calculation and willingness to fight.
Mammon even has his face on hell's currency and a banking app, yet who exactly is he supposed to be paying tax to? Lucifer, hells actual owner who doesn't seem to be a leader? Or are they answering to those 'higher up' which places Mammon in the frustrating position of second fiddle to a boss who isn't the best?
We haven't met Envy/Leviathan yet, but we have a host of main characters who live contemptuous lives and look to what others have that they don't, so envy, like wrath affects everyone, have been prominent driving forces since the start along with sadness and tragedy which aren't sins.
Mammon manages to encompasses all elements of sinning even when he shouldn't really because it's by proxy as someone whose actions are portrayed as self serving and cruel with no excuses or failure to acknowledge, someone who upsets and can be harmful to those we are supposed to root for, something these series shy away from when they want us to like a character. We have a demon who succeeds in being someone you have no business getting mixed up with, in hell, a place you shouldn't want to be, where he is a crowned leader who is after your money if you're lucky.