The poor person is likely to starve to death. I doubt the billionaire would ever experience that hardship even if he lost everything, he probably still has some lines of support. Hell, just his reputation alone can probably get him an enormous loan or job or something else that other people could only ever hope to have.
Masayoshi Son is famous for losing more money than anyone in history, and he goes out and raises the largest VC fund in history (which is a laughable failure) and is doing it again (apparently logic doesn't apply). Once you reach that status people will worship you even for your failures. Nobody ever pays attention to the person who is struggling just to get by.
https://www.celebritynetworth.com/articles/billionaire-news/...