I think that thing Morty said about Rick being more like a fucked God than a hero or a villain is the most accurate description of Rick. He’s saved people a lot, but he’s capable of fucking things up on a massive scale (sometimes on purpose, other times without meaning to).
Hell, he made an entire microverse to use as a car battery and enslaved the people there to make more energy. So he’s literally a fucked up God. I feel like Morty knows Rick better than anyone else in the family to be honest.