Just because you happen to flip burgers at McDonalds, doesn’t mean you don’t have job skills training OR a higher education. It could simply mean that you need the extra [measly] money for whatever reason. Don’t presume that all fast-food workers are losers who don’t go to college.
And as for the OP:
I think that everyone should experience being disabled, gay, poor and of an underprivilaged race for a day. Not all in the same day, of course. Eh, you know what I mean.
Spend some time in the hospital with a serious illness. OR
Spend some time with a child in the hospital with a serious illness.
Nothing proves the value of life to a person more quickly than a little kid crying because the IV in his arm hurts as much as the pain associated with his illness.
On the good side, everyone should also experience a child’s spontaneous hug/kiss/“I love you”.