and we can just assume whether he's rich, and he has the money or he can afford that such amount, he can only answer on his behalf.
All that matter is take this as a good basis when you are trying to place a huge amount thinking that with a high percentage bet you can
make decent money, even a less-chance of losing will hurt you if you mistakenly pick the game to bet on.
Even the previous OP has said, that of the gambler story that the OP told in this thread. there is a lesson for us gamblers, that there is no easy bet, even with lower odds there is always a risk in gambling. but in essence, it all comes back to each of us. because, as we know especially those who like to bet in sports betting. We will always encounter low odds, such as a very strong team fighting a weaker team. in theory, on paper the stronger team will win the battle. Unfortunately, in the world of sports, the outcome of every game cannot be predicted with certainty. which means, a strong team can be beaten by a weaker team. and sometimes, we get caught up in our gambles.
Fortunately, we don't gamble like the gamblers the OP described in this post. but what is certain, in every bet, it doesn't matter if the odds are low or high, everything carries a risk. and therein lies a unique part of the art of betting, regardless of winning or losing.