Are we really comparing the tangible leap from $7.5 -> $15/hour that will help people get out of the government sponsored poverty, to the potential gains that s

Are we really comparing the tangible leap from $7.5 -> $15/hour that will help people get out of the government sponsored poverty, to the potential gains that some workers who already make more than $15/ hour would make in the future (if AMZN does not become GE)?