Are billionaires a touchy subject?

I am writing a college paper criticizing billionaires, and some people's responses have been weird to me. But maybe I am the weird one?

To me it's logical to scrutinize someone with so much wealth. And I think they should especially be held accountable for their use of their money. I also personally don't believe they have a place in politics if they try to interfere.

But some of the students seemed hesitant to offer any feedback or advice during a peer review. I overheard another student mutter something about "...just bitter they're not a billionaire".

I also quoted Bernie Sanders, and I noticed a similar reaction.

Did I pick a weird topic? I think it's very relevant with all the chaos happening right now.