Original sentence: Either case constitutes idiocy  from the standpoint of many auto professionals, as an "idiot light" will only come on after a problem has occurred, with no advanced warning.The "idiot" factor comes to play in such a case either because the car maker decided that most drivers are too idiotic  to be able to read a full oil pressure gauge, or the car maker was too cheap  to include such an instrument
Edited sentence: Either case constitutes idiocy from the standpoint of many auto professionals, as an "idiot light" will only come on after a problem has occurred, with no advanced warning.The "idiot" factor comes to play in such a case either because the car maker decided that most drivers are too idiotic to be able to read a full oil pressure gauge, or the car maker was too cheap to include such an instrument