... in your chosen field, more successful than you ever dreamed, would you be happy? Would you be jealous? Would it depend on which person made it big?
My father-in-law talks about writing books after retirement. At least one brother of mine has an abandoned novel buried somewhere. The only cousin I talk to is currently drawing a graphic novel.
Someday, I could be the sister, daughter-in-law, or cousin of a famous writer. I would be a footnote, my entire career not as important as who I am related to. I'm not sure how I would feel if everyone said: Jennifer Ruth Jackson, sister of famous writer Smith Jiaskap, writes too! How... quaint.
But, outside of not wanting people to discount my accomplishments or compare them to someone else's, I don't think I'd be bothered by it. I genuinely care about the lives and interests of those around me and want them happy.
Now, if the person was someone who I cut ties with for being horrendous? Maybe I wouldn't be as gracious. Perhaps I would be petty. There would, at the absolute minimum, be inspiration for enough insult poems to fill a chapbook. And really, isn't that a type of success by itself?