Well, just for starters, they're suffering from entirely treatable diseases and injuries because they don't have health insurance, or don't have non-shitty health insurance. Quite a few of of them are suffering from childhood malnutrition, leading to lifelong cognitive and developmental defects. On the lowest rung, they are suffering from homelessness and all the deprivation and desperation that comes with it.
You're trying to tell us that someone to trying to raise kids in a rotting, roach-infested apartment in a drug-haunted slum, with no chance at a decent education and no real hope of advancement, is really perfectly all right because at least they're not actually living in a Delhi sewer. Or are you not even aware that this happens in America? You sound like the closest you've ever come to actually knowing a poor person is tossing a quarter to a homeless man in the subway.