It is the major advantage the wealthy have. I define wealthy somewhat amusedly as a person who doesn't need income. They can live off their nut as high as they want for the rest of their lives. Of course, none of them would do that.
While you suckers are on salary paying state income tax, Federal income tax, FICA, and whatever else (I used to pay 2.2% CITY income tax), I'm over here waltzing along with investment income on which I only pay some Federal income tax and very little state. (I still have some earned income in Ohio.)
I don't pay a cent to FICA, nor to the state of Georgia, and I pay unearned income rates to the Feds that caps at 20% (I think, last I looked).
You suckers who work for yourselves get clipped pretty hard on the first $137K or so.