A conformist is a person who follows traditional standards of conduct. If you're a conformist, it's unlikely you'll join a revolution to overthrow your government; instead you'll argue that it's best to keep things the way they are.
What is a conformist person?
(Entry 1 of 2) : one who conforms : a person who behaves in accordance with prevailing standards or customs and typically dislikes or avoids unconventional behavior I'm running with the herd and swimming with the tide and being a good little conformist.—
Is it OK to be a conformist?
“People are conformist – and that's a good thing for cultural evolution,” said Michael Muthukrishna, a Vanier and Liu Scholar and recent PhD recipient from UBC's department of psychology. “By being conformist, we copy the things that are popular in the world. And those things are often good and useful.”