Being the best burger flipper gives you zero job security because your boss will believe they can’t afford you if you suddenly realize how much you are worth. They may preemptively let you go, if they’re a good boss that wants to see you grow.

There’s no such thing as job security without a form of a contract.

Also, you should look up the minimum wage in the 60’s and 70’s and adjust it for inflation. They were getting paid $40USD+ per hour in today’s dollars. So, no $10 is not a lot.