> Maybe I should just take it more easy but I feel like I'd float under the radar for possible promotion then.

Few companies have sane compensation policies. by all means put in extra work when you have an opportunity to learn some new skill from it. but once you get to a pint where your skills are valuable, either jump ship to a another company that pays commisserate to your new skill level or start or join a startup where you get enough equity to eat at the adult's table when the ipo or acquisition happens