You seem so clear about who you are. So certain that you are just right as you are, that for all your intelligence and maybe in spite of it, you never seem to need a second opinion.
Cruelty impresses, people want to be afraid of something. They want someone to whom they can submit with a shudder, the masses need that. They need something to dreed.
Certainly we do not need quantum mechanics for macroscopic objects, which are well described by classical physics - this is the reason why quantum mechanics seems so foreign to our everyday existence.