That seems a bit simplistic as a binary choice. I'll ultimately choose for myself what I think is ethical to do, but that doesn't mean I should ignore everything anyone has ever written. Reading intelligent things other people have written is a good way to improve my own thinking on a subject! In fact I'd say a pure "do whatever you want" approach is somewhat intellectually lazy, because it actively avoids engaging with and working through ideas that might be challenging to my own preconceptions.
If the answer is yes, then simply read what someone else says about making money and do that.
If the answer is no, then you're free and can do what you want.