If by 'use them' you mean use the ideas, then yes. I mean to say that "intentions" are always tricky. Is a person evil and lying to you about their intentions? Are their intentions good but they got blind-sided? Are their intentions good, but they made a silly mistake that ruins everything? All outcomes are a problem, regardless of whether the person is bad. But, taking the meta-perspective for a bit, ... have you noticed that all such discussions boil down to "can I trust X"? My claim is: maybe it's not about "trusting X" but about how we can make it work without (completely) relying on trust. Ideas are often tricky, with subtle nuances. Killing your heroes may kill their best version of the idea. (I did not plan this conclusion beforehand. 😅)