If the only screwdrivers were $20, a lot of people would use butter knifes to screw in a lot more things. They're not good screwdrivers, but they're not $20 either.
What would happen is screwdrivers would rarely break, all the necessary screwdrivers would be made, we'd get cheap screwdrivers secondhand that had been straightened or re-shaped. The market would shrink considerably and the companies making screwdrivers would be at risk of closing. Repair shops would increase, resource usage would decrease, there'd be far less need of recycling.
Capitalism is completely incompatible with economy and environmentalism.
There is a significant second-hand market for good quality tools that were built to last. But you have to be reasonably informed in the first place as a consumer to know what's good and what's bad.
