Pray tell how a lightweight like Holly would give informed consent while under the influence of party drugs? Also c'mon, it is plain obvious that Ivy sends private stuff to Lena without consulting with Holly. You really think she was like "Okay Mark you can take a picture of me sucking you off and then send that picture to Ivy and it is okay for her to then send it to Lena "Why, both sound like perfectly good fun times to me.
What makes you think that the pictures were shared without Holly's consent?
"Corrupting" is such bullshit concept i don't think i can roll my eyes hard enough at it.
Ivy is just teaching Holly how to have fun, in a way that Ivy herself views as fun and supposedly partakes regularly. It's not like Holly is 12 and can't choose not to hang out with Ivy, if she didn't like what Ivy lets her experience. I hardly think this makes Ivy in any way an asshole, or a bad influence, unless we're going to claim that being sexually open and having fun is something bad that no girl should have her hand in? It can be a pretty tall claim when in the meantime player-driven Lena potentially sucks all the dicks and fucks everything that moves.
And no, the problem with Ivy is that she is very single-minded and thinks she knows what's best for everyone and never listens to how other people feel. It is very clear in any playthroughs where Lena is not going along with Ivy's advice regarding stalkfap or working for Billy, she repeatedly brings it up, flaunts how much money she is making, and acts condescending when Lena refuses to do the same as her for her own reasons.
Again I don't think Ivy is a villain or trying to harm Holly, but her idea of being friendly is to insist on other people doing things her way and going along with what her idea of fun is, and anyone that disagrees is either foolish or an inexperienced prude. That kind of attitude is what makes her a bit of an asshole.