And additionally, using dish soap to lubricate parts for assembly is standard procedure elsewhere in many industries. It's sometimes even recommended in the standard manuals as part of a repair procedure (I've had refrigerator gaskets that call out using a bit of soap on them before installation).
A crucial difference being that there's no risk of your refrigerator gasket sending a 3 tonne metal box into a crowd of people if it comes loose, unlike the gas pedal on a truck.
Playing fast and loose with the processes surrounding something as important (and dangerous) as the gas pedal is recklessness of the highest order.