Maybe 3rd times a charm. A tool that cost more is generally better than one that doesn't. Sometimes you pay for brand names sure, but generally a $10k machine is going to be more flexible, yield better results, and last longer than a $5k machine. Sometimes a tool is more expensive purely because it costs more to make than a cheaper one.
Guitar pickups are so cheap to make that they are priced purely based off how much people are willing to pay. No humbucker is better or worse than any other humbucker, they are just different.
Any guitar can perform any guitar song. Some might require a little finagling and the final product might not be 100% what you want it to be, but a skilled guitar player can get the job done within reason. Buying new guitar equipment has value, but it's abstract and subjective.
On the other hand, if my job is to rebuild engines, I can put a pretty accurate number on how much money I've lost because I've been resurfacing the blocks by hand instead of with a milling machine.
I can't put a number on how much money I've lost or gained because I recorded my album with a chinesium humbucker instead of a JB
In short, you can't throw $100m at a band and expect them to be successful.