Don't worry about Sims 4, leaving cheats on, and your game getting corrupted. Not all the cheats will turn off, but most of them will automatically when your sim travels and there is the loading screen. As far as the ones that don't, they will automatically turn off when you end your game for the time being and will be off again when you start back up. I haven't had any issues with game corruption and cheats. I do though make sure I turn off the move objects cheat, and that one you have to be careful when using it in buy/build mode because some times it can causing routing issues.