Crappy quality LS1 harness install part 1

How do these people running these shops sleep at night with zero morals, scruples or conscience ? TCC not hooked up. Wires running everywhere. Its a 6.0L and file was for a 5.3L Yukon. Previously I fixed horrible crimp on efans. New harness terminals fell out of the main and fuel pump relay connectors. This installer/builder tore out the other perfectly working harness that was DBW and installed a cheap ebay/amazon harness. There are ZERO efan relays; they are hot wired to switched ignition so the fans run all the time. Plus he kept the other harness, DBW parts, and PCM. Now owner cant even hook up cruise without buying another aftermarket kit. This all started when the owner noticed an unusual squeek/squeel that he could not isolate. The shop owner told him the engine needed completely rebuilt. Then BAMM, here we are with a $17K bill. This guy should go to jail for this. Total thief.