Being on the board isn't like he's designing oil wells. I'm not saying his success isn't influenced by his father's name, but he graduated from law school, has worked in the finance industry and has his own experience in the US government. George W Bush nominated Hunter Biden to replace Dukakis on the board for Amtrak.
I mean, goddamn, look at the CV's for McDonald's Board of Directors. Private equity firms, WNBA, Chevron, real estate... it's not like a Board is some meritocracy where you work hard to earn your seat at the table. It's networking, contacts and wealth supporting wealth. It's not great, but it's not some Tom Clancy-esque, Ukrainian conspiracy.