Standing out and excelling is fine, especially when the business you work for recognizes that and rewards it.
I've worked for too many companies that recognize all that only to…abuse you. You stand out, so you get stuff added to your workload without compensation but with the expectation that you WILL excel at this new thing.
You become their fool, with the boss dumping everything on you but not paying you a penny more. You can't ask for a raise because the company is managed by an idiot and there is no money for that. Besides…you've already proved that you will excel without compensation so why should they have to pay you more? Advancement/promotion? In a small business? To what? You aren't the owner, not part of their family and they aren't giving you a share of THEIR profits. You're already the guy running everything.
Quit? Go ahead. You are after all, replaceable. And guess what, the new guy they hire and continue the trend with - they will pay less because your 'expensive' salary is no longer being paid and they pocket the difference.
You all sound like you work for good companies that recognize your hard work and rewards it. If your company is a small business then that's great because it does not seem to be the norm where I am.
Finally, there is responsibility. You excel, they move you into more responsibility and you get more reward for that. That's great, but you're also the guy responsible when stuff goes wrong. I'm almost 51 and I've had 14+ years (in my previous job) of being the guy responsible without compensation or reward for my hard work. I don't want that responsibility anymore.