An excellent example. Quantum electrodynamics (QED) won Richard Feynman and his colleagues a Nobel Prize, but it is of little use to the electrician wiring your house.
Can you really be so naive?
Without pure science theory, there is no technology for the technicians (physicians, electricians, computer repairmen) to work with.
Do you seriously believe modern electronics would be possible without an understanding of quantum mechanics?
I hope the irony isnt lost here. Science has allowed you to promote your luddism on the internet rather than the street corner.