We don't have to deceive ourse when gambling, everything we do have same risk as long as they are activities we participates under in gambling, we may choose to play safe after realizing the risk involved in the kind of betting we are going for, the level of the risk taken is from our own part to choose how far we want to take it, but not that some games are more favourable in luck than the other.
Though the weight of your statement is valid, as the amount of risk is always the same in terms of any gambling activities that we will be participating
the only thing that may add the edge is the knowledge that you have about the game you choose to play.
With that idea, controlling your emotion and managing the amount of money that you are willing to stake can be controlled, and then again, the chance of
winning still depends on the amount of luck you have and the timing that you use quitting your way with a decent amount of profits.