For better or worse, the "PG-13" rating wouldn't exist without Temple of Doom. When it was first released it was rated PG, and there was a HUGE "think of the children!!" backlash to the human sacrifice scene.
Ever since then, all blockbusters are intentionally aimed at the PG-13 rating. And movies that would "naturally" be meant to be R Rated are edited down to PG-13 if there's any chance they can capture some of that blockbuster money. Not just action movies, but horror movies etc. So Temple of Doom's influence was MASSIVE.