The corrupted version is one of the few sources of any kind of perks in this game.
Most corruption perks kind of suck (raise fertility/virility by corruption/10. (Corruption/10)/3 increase to pregnancy multi. Ability to go into heat/rut once per 30 days (or twice? if you take both) and a second source of eggs.
It's not much. Certainly nothing compared to CoC and even less compared to TiTS. But, it exists.
I'm just really disappointed that it's basically just salamander+ and not an anthropomorphic dragon tf. Way too many half-animal races in coc2, and for the full beastial races we actually get, most of the npcs are only half that race, so we're just back to stupid half animals again.
My feeling is that the game is more weeb than furry, and weebs are too cowardly to go full furry.
P.S. The egg laying dragon perk should have a non-corrupt version. I don't care if corruption doesn't mean shit in this game, laying eggs and having the pc calling them their corrupt spawn when you're still pure is stupid.