You are right because there are some games that you have to play with your creativity to win. If someone with good creativity plays games about which he has a good idea, then his chances of winning are high. If I bet randomly without analyzing whether I will win or lose, such bets will always be lost. Everything cannot be left to luck at once, some creativity can be created from within and won.
What kind of creativity you’re pertaining on this? On luck based game there’s no way to determine or analyze the next outcome of the game therefore you’re totally relying on luck to guess if you will win or lose while the only thing you can do is to adjust your bet size in able to do more profit or reduce lose.
I think the bankroll management is the part which the creativity that you mention takes effect.