Do shops still sabotage cars for profit?

i was an automotive mechanic for 10 years at a dealer. i had all of the skills and tools though i didn't make squat. i felt that if it didn't need it, i didn't try to sell it! my counter parts made a lot more money than i did every year. i eventually took my skills and left the automotive. the best move i ever made career wise. sadly there are alot of people who are starving in that industry and have no connection with honor or morality. i am sorry to hear about this.
best of luck.