I'd take a nuanced half and half approach. I think the majority of who people think are just the generic "bad guys" is largely out of ignorance and/or naivete of surrounding circumstance. But I also do think there are people who are pretty fine with doing some sociopathic things to enrich themselves. The typical example is big pharma. Imagine tomorrow a magic genie offered a big pharma exec a cure to cancer, and he got to pick which form it took:

1) A one time pill that not only cured any existing cancers in a user, but also permanently prevented any further ones. And to make it even better, it also is somehow relatively simple meaning it could be easily cloned and made extremely and globally affordable.

2) A complex (enabling a defacto monopoly on production), lengthy, and expensive treatment program that is 100% effective at curing any 1 type of cancer - that must be repeated per cancer and per individual as they emerge.

I do genuinely think that all big pharma execs would choose #2. They'd probably rationalize it as something like 'Well I'm curing cancer, and now I'll ensure we have the funds to continue working to solve even more illnesses, and everybody wins." So I'm sure in their minds they aren't villains, but that's because humans are just really really good at cognitive dissonance.