In single player games it is just another way to have fun. I mean, Minecraft creative mode is essentially equivalent to turning on all the cheats. It removes all the built-in challenge and then you come up with your own game.

It doesn’t seem very appealing to me, but I don’t think there’s any particularly interesting psychology behind it. Rather one could say I lack creativity and need monsters to motivate me to build anything.

Cheating in real competitive games is rude, though, for sure. But most people don’t play top-level competitive games.

Cheating in pseudo-competitive games like Overwatch or Dota is both rude and stupid. Because the game can just find people to match your cheat-augmented skill level anyway.