Hey there!
Something like that yes. Basically all main characters have a core principle of sort, Mona is all about taking care of everyone, Charlotte wants to be admired / desired by guys at school, etc. Going the Trust route aims at helping them overcoming their issue VS corruption is about exploiting it to your own advantage.
For instance Charlotte trust route in about helping her building confidence so that she can explore her sexuality in a confident way while corruption route is about convincing her that being the biggest slut in school is her only way to get guys.