The goal is to play safe and not to make you rich, but to increase your chances of winning and minimize your losses and to avoid going bankrupt.
So basically, the strategy is to stretch out the gambling session. Well, no one really wins long-term in games with a house edge, so this is a solid suggestion. They say gamble for fun, well, this is exactly that. You get to play longer, and even if you lose in the end, you still feel satisfied because you were entertained. I think only bankroll management in sports betting really gives us a shot at long-term success.