If you owned Bitcoin Cash at the time of the Bitcoin SV fork, you would have been given Bitcoin SV on a 1:1 basis - this would have made you a lot of money. Determining what 'rich' means in terms of investment is very speculative, and depends on your own singular investment amount, and what not. Bitcoin SV has in fact shown volatile price movements, so sharp increases in price are not unordinary. Factually, yes, people have gotten rich with Bitcoin SV, however, each person's account is represented individually.