Can we please knock off the nonsense of this "Buffett secretary" talking point? Debbie Bosanke is estimated to make north of $200k per year, while Buffet is paying capital gains rates. Of course her rate is higher.
"Labor is prior to, and independent of, capital. Capital is only the fruit of labor, and could never have existed if labor had not first existed. Labor is the superior of capital, and deserves much the higher consideration." - Abe Lincoln
If you want to see what labor looks like without access to capital, check out rural Africa.
In reality labor and capital are completely symbiotic. At least until the robots take over.