Seeking Corruption games where you're corrupting for someone else

[Pretentious Goblin]

For example, in Big Brother you have the option of being "friends" with Eric and not interfering with his relationships, in return for money and other things. It wasn't really fleshed-out at all before the game was dropped, but are there other examples of this? Ideally with family members, friends, other people close to you. Male or female protag, either is fine.