Success has a part of skill, and a part of luck. It hurts to be reminded about skill issues.
Board games aren't as simple as time invested. I could spend my whole life studying chess, and some 13yo prodigy will handily beat me blindfolded, while juggling three other boards.
Board games cannot be conquered with wealth or a successful business. Or, rather, they can, but only by pressuring your underlings into letting you win; giving you the feeling you crave.
But if you knew people were letting you win, wouldn't that ruin the feeling forever?
It seems like there must be another component, but maybe it is just that simple.
If they let me win, that is since I have power over them.
This is the more interesting answer to me because it's a reminder that everyone is playing a different game.
I used to play games to win, but now I play games to maximize the collective enjoyment of playing the game. This shift began with my spouse (who is a very sore loser) but continued with my children. I still let them lose sometimes because I want them to know how to enjoy a losing game, but I (selfishly) want them to enjoy games as much as I do, so that's my focus, and I will play to lose (as non-obviously as possible) frequently.
When I play games against good players now, I notice that I've lost a lot of skill in the kind of strategic ruthlessness required to win. I found this surprising, because playing in a way where you're trying to "fix" the outcomes for other players and modulate the mood of the game based on outcomes still requires a great deal of strategic insight and clever play. I guess the additional attention to the social and emotional dynamics must naturally reduce focus. It's kind of a shame, because you can't maximize enjoyment with a skilled player without being skilled, but I suppose the trade off is that there will always be more unskilled players who can benefit from enjoyment maximizing play than skilled players who will suffer from subpar opponents. Naturally, skilled players are already getting a lot out of the game, or else they wouldn't be playing enough to become skilled.
Naw, the rare super talented 13yo child that excells at such games will have also spend an incredible amount of time learning everything there is about it - leaving very little time to pursuit outside of that discipline to improve themselves.
There is a grain of truth to what you're saying, obviously - as Magnus has proven when he started to enter chess tournaments... Outplaying people with decades more experience. But you're also ignoring that he spend pretty much every waking moment of his thinking life playing chess.