How many contractors do you think there are relative to the size of population, so that the previous poster was claiming that was flooded with wealth?? This is just plain nonsense. Mercenary payments have extremely limited impact on the overall 'lower class' wealth.
(And you somehow forget about the little insignificant downside of a mercenary career that you might be a bit dead or maimed, oops)
if you consider that almost all contractors are from poorer families it affects them disproportionately, you need to exclude upper middle class and up from your percentage calc.
I agree that "flooded lower classes with wealth" is an exaggeration but I think it is not completely wrong.
(And you somehow forget about the little insignificant downside of a mercenary career that you might be a bit dead or maimed, oops)