Using smaller or higher odds will not guarantee get a win if that is a gambling game based on luck. Some people can win or hit the jackpot using one of those types because they have luck. But they can lose their money anytime no matter if they use small or high odds.
Winning percentage is set so that gambler will have an idea how much risk they are taking. It’s statistical guide on your game and that’s working even on game of luck games such as dice with determined winning percentage.
For example you are playing with 90% winning percentage game. You will most likely win 9 out of 10 games so will have an idea how frequent you should win in your bet but of course the payout amount is lower.
You are winning your bet frequently but that doesn’t mean you are in profit after your game.