Assuming Trump still is fairly rich (even if it's a much smaller rich than Trump would like to project), the fact remains that he is just not a very good businessman, and that he has held onto whatever money he does have in spite of his business acumen, not because of it.

Put another way, if I were given $100M by my dad back in the 40+ years ago, and managed to grow it to, say, $500M by today, that would be nice, but I wouldn't consider myself "good with money". And it looks like the real figure for Trump may be north of $400M[0], which makes even $1B -- if he has that today -- look not all that impressive.

We're talking about the US President here, someone we should feel comfortable with influencing/managing the fate of trillions of dollars. Trump is not that guy.

[0] https://www.nytimes.com/interactive/2018/10/02/us/politics/d...