I totally agree - by betting higher bets alone does not guarantee at all that you will get rich. The only sure thing that will happen is that you will going to lose than winning if you don't have any pre-planned betting and good strategies. It is very high risk to gamble randomly regardless of whether or not the amount of bet is high or low.
Yeah the chance of risks is too high when you place higher bets and there's no chance for you to recover when you lose unless you have unlimited resources like rich people.. but for normal people just like me it's better to place minimal bets either way you can't be rich at all when you gamble. unless you won a jackpot in lottery or you hit a jackpot one time big time.