disproportionately

I'd say it was a less a jokey comment, and more and allusion to the fact that the US army (all armies, maybe) is known for recruiting disproportionately from the people with the least options (economically and academically), who are vulnerable to the deceptive offers of bonuses, education and non-deployable positions that recruiters can make without ever providing.

Pantsbomber psyche laid bare in messageboard archives (corrected) Boing Boing 2009

As the system progressed, it stole money disproportionately from the poor and unhealthy to give money to the rich and healthy.

Think Progress » Bachmann’s Plan: To Deal With Debt, We Must ‘Wean Everybody’ Off Social Security, Medicare 2010

Language graduates were also disproportionately from the wealthiest homes, with 30% from the highest income group.

Arts degrees become the preserve of the wealthy Jessica Shepherd 2010

That this hurts the blacks disproportionately is simply explicable.

Borjas: What's His Problem?, Bryan Caplan | EconLog | Library of Economics and Liberty 2009

As the system progressed, it stole money disproportionately from the poor and unhealthy to give money to the rich and healthy.

Think Progress » Bachmann’s Plan: To Deal With Debt, We Must ‘Wean Everybody’ Off Social Security, Medicare 2010

As the system progressed, it stole money disproportionately from the poor and unhealthy to give money to the rich and healthy.

Think Progress » Bachmann’s Plan: To Deal With Debt, We Must ‘Wean Everybody’ Off Social Security, Medicare 2010

The Mexicans who enter the US illegally tend to be disproportionately from the South part of Mexico, and tend to be darker, with more indigenous (i.e. non-white) blood.

Council Gets Racist Emails in Response to Arizona Boycott Proposal « PubliCola 2010

Meanwhile, in the absence of an official gender assessment, it is having great success in publicising its own conclusion – that women will suffer disproportionately from the government's cuts.

Women should stop whingeing about the coalition cuts Catherine Bennett 2010

As the system progressed, it stole money disproportionately from the poor and unhealthy to give money to the rich and healthy.

Think Progress » Bachmann’s Plan: To Deal With Debt, We Must ‘Wean Everybody’ Off Social Security, Medicare 2010

The bulk of epidemic victims, however, were disproportionately from the lower groups in the socioeconomic order — in New Spain, this meant the vast majority of the population, almost all of them Indians and mestizos.

Pestilence and Headcolds: Encountering Illness in Colonial Mexico 2008