Curate, connect, and discover
As someone who is REALLY into the seven deadly sins, I originally had my doubts with the Hellaverse making the Princes of Hell positive versions of their respective sins (except for Mammon, who is the vice of Greed in its most awful glory). I mean, while the positive message and denunciation of religious madness is appreciated and needed (such as Asmodeus representing the modern, positive and non-religious meaning of lust while posing as the religious meaning of "lust"), it kind of removed something from the fact Hell is supposed to be... well Hell, a fucked up, horrible shit-hole where everything keeps going wrong for people.
But now that Hazbin Hotel is out I am at peace with this, because it was all to better make a parallel between the Princes of Hells and the Overlords. The Overlords truly depict the seven deadly sins in what they have of most horrible and evil, and thus make perfect "evil twins" to the Seven Deadly Sins demons. Valentino is the evil lust to Asmodeus positive lust ; Rosie and the cannibals are a dark reflection of Queen Bee's positive vibes ; Vox, Velvet and Alastor are all much more prideful in a negative way than Lucifer himself. In fact, the battle between Alastor and Lucifer in episode 5 truly highlights the "regular" pride of Lucifer, just misguided self-centeredness and deep confidence issues/self-loathing leading to a massive "I'm the best showman" persona ; to the arrogance of Alastor, the manipulative, ambitious demon who is obsessed with being respected and feared, and who keeps trying to take down seen "rivals" even when they are way above him. (There's a whole thing to say about Alastor being just as much of an "attention-whore" than Vox, but in a different - more intelligent and reserved way, like how he was clearly annoyed by Carmilla shooting down any talk about his mysterious disappearance)
This truly drives well the point that the real evil in the world of the Hellaverse comes from humans and humanity, by showing how the "fallen angel" demons are roughly positive, just not conforming Heaven's strict rules ; but the Overlords are truly depraved and vicious. Thus, in a twist, these over-powered Sinners are better at depicting the cardinal vices than the Seven Princes of Hell themselves.
Except for Mammon of course, 'cause nobody can top him as the greediest bastard.