coming from the other side of that, i get paid basiclly 30$ to do an alignment.
which equates to 2 labor hours.
for me to make money, and not be wasting time, i have 2 hours i could spend on that.

at tire kingdom, i made 5$ for doing an alignment. regardless of how much time i spent.
so there was no incentive for me to do it correctly, which i rarely did. 5$ doesnt pay me to care about much.

if you want to get something done correctly, then pay extra.
or go somewhere cheap, and let them fuck your car up. or do it incorrectly because they are underpaid.