And you have to ask the big ? "why is that?" You cant make everyone equal in outcomes in life but we have acknowledged that
All men are created equal. Inequality in outcomes is basically tied to ones intellect. The average IQ in the US is only 95 and you're mentally impaired or retarded at 70. The best that people below 95 can be expected to do is service industry, low level construction work and the DMV.

And that's OK. Someone has to do those jobs and it affords them independence and pride.
You're economic standing in life is directly tied to your intellect. If your IQ isn't above 110-115 you shouldn't even be in higher education. Why? Because you don't possess the intellect to apply that what you may or may not have learned to achieve higher success in the economy. A good govt job, military or policing is for you in that category. Above 115 you get into the small business and middle class achievers.
above 130 and beyond its the Doctors and other top professions like Architects and Aeronautical Naval engineers etc. Now
your getting into serious money making and status and you deserve that recognition. At 140 and up you're at the top of the pyramid. Thats just the way it is and always will be. As J.W. said. Life is hard and its harder if you're stupid.