Yes, this is what rich people most likely do, why they can win more. They gamble with money they think is small, let's say $1000 is 1% of their weekly income, for one bet like Arsenal vs. MU match, if they win, they have enough to earn at least $500. Meanwhile, people with lower incomes bet $20 for a weekly income of $50 but end up with lost becaus e betting in several match and most of them is loss. and more more worst conditions is they are believe in martingale strategy while they have low income. This is very possible happens to make them getting rekt.
Money gives the wealthy people advantage on everything about life with which such advantage extends to gambling making them go in what could be referred to as smart betting. Betting on small odd that's with a high winning stakes using big amount of cash. Hardly you wouldn't win 3 times out of 5 times of betting on a small single odds with $1000, at least you would recover your 2 times lost and still be in profit. An advantage the poor can't imagine.