This is silly. You think the career DOJ prosecutors are looking at the list of victims and only deciding to prosecute if there is a rich person on the list?
Let's look at one particular example, the stop the steal scam. Thousands of people were tricked in to donating to the ringleaders of an impossible political cause based on false claims, and none of them are going to jail for that in particular. You could find dozens of similar examples just by keeping an eye on the news, but nobody thinks about it because a certain type of con with victims that professionals can't empathize with has become normalized.