I suppose it depends on what feels rich. The kinds of places you go when you are actually rich cost thousands or tens of thousands of dollars a day, and they have shops where most of the stuff costs tens or hundreds of thousands, and everyone around you is carrying, flying, driving, or sailing things that cost hundreds of thousands or millions.No one I know who makes 300K (after tax) - unless they have a net worth that is in the 10s of millions - feels rich.
There's a huge difference between $300k/year and $300k/year with 7 figures in the bank. The latter means you can afford a down payment on decent property anywhere, which means you are actually making an investment instead of pissing everything away on rent.
If you don't feel rich at that point you need to get your head straight. Obviously there is always someone richer, but you are deep deep into the 1% of the richest country in the world and you need to be thinking about your greater life's purpose.