I think this should be everyone's mindset, it really is a good place to be, but sadly it tends not to be an aspiration for to many of us.
Modern society seems to drive people to accumulate things that you can then tick off you list of "Things I need for me to be or worse, to be SEEN to be wealthy". It has for the last few years added in the "show everyone how well you are doing on the internet" craze. Guilty as charged in the past of course, but not these days so much.
Yes I have nice things, but they are things I enjoy, not things I buy and put on the shelf of "what made me buy that!!". Ive not bought an expensive watch for years, seems pointless as I don't wear watches and haven't for a few years so bit pointless outside 'impressing' people who are unimportant to my life enjoyment. Sure I have nice cars and clothes but those both get used lots and give me proper pleasure, but outside of that I not longer seek the latest greatest gadgets or trinkets.
Aspire to being happy, healthy and cultivate a close and strong group of trustworthy life long friends you can spend time with and laugh lots. I've been at the top of the (posted) money list for many years, but has it made me happy or stopped me getting ill, divorced or stressed? Nope, not at all and I would argue that the stress is a trigger for the illness and the divorce....
Given up chasing the dollar, not worth it anymore. I am now about spending less, saving and downsizing and frankly finding time to work less (not fixed that last one just yet but I will). I am 56 however and in my 30's and most of my 40's I would NEVER think like that. My closest mates fit into 2 groups. The ones I grew up with (all employees) and ones I got to know in the last 20 years through shared interest (virtually all company owners or all sizes). The former group are all about retirement......as are most of the latter group.
Be happy with life and don't think "if only I earned more I would be happy" because most of the time, you won't.