The issue is that you have to be able to distinguish a good mechanic from a bad mechanic cuz they all get to charge a lot because of the shortage. Same thing for plumbing, electrical, HVAC, etc etc etc
But I understand your point.
Why? Because they are on a different incentive structure: non-comissioned payments for employees. They buy OEM parts, give a good warranty, charge fair prices, and they are always busy.
If this computer fad goes away, I'm going to open my own Toyota-only auto shop, trying to emulate them. They have 30 years of lead time on my hypothetical business, but the point stands: when people discover that high quality in this market, they stick to it closely.
There are laws about what goes into a car, strict regulation. Software, not so much.
Until my boss can be prosecuted for selling untested bug ridden bad software that is what I am instructed to produce
What works for worker safety is regulation. I am afraid the same will be true for software.
Currently trading at a price to earnings ratio of about seven, compared to 150-800 for Tesla (depending on how you judge their book cooking)