It's not wrong. Life is ultimately meaningless.

I'm doing the same thing. Except that I understand that I was able to do so because I'm considerably more resourceful than average.

I personally think that gives me the responsibility to at least improve the lives of a couple of people. Especially because it's relatively easy for me, compared to how hard most people have it on planet earth.

But if you just got the money from your parents or something, even that reasoning doesn't apply to you. Most people really don't add much more to history than hanging out and making sure their DNA is passed on to another generation. Nothing wrong with being one of them.

You might end up depressed due to boredom and lack of purpose, but that's easily fixable with antidepressants.