From inside a dust-bin

When a man's job entails sitting inside a dust-bin, using his bare hands to dig out piles of filth, how should one react to that sight? I know about rag-pickers of Narela and of people who carry night-soil on their head. Even though this seems ‘much less’ humiliating but still, it seems humiliating enough.

I crossed this man (photograph below) in JNU while going to Godavari bus stop. Couldn't resist speaking with him. He says he empties about 10-15 dust-bins daily as that is his livelihood. I did ask his name but cannot recollect it.