There are people who work demanding physical jobs and get paid minimum wage. There are people who sit in their chairs 9 to 5 doing “white collar” jobs, and they get paid five times as much. And then there are people who were born into wealth, and they don’t really have to work at all. The outcome is 80% genetics and parents’ socioeconomic status, 20% personal effort.
You can’t fight genetics, but you can do something to make sure that children of people from the first and third categories get equal access to healthcare and education.
As one smart guy said long time ago, “From each according to his ability, to each according to his needs”.