But when things are done for Krishna, the result is enjoyed by Krishna. When we put ourselves in the position of enjoying good or bad reaction, then we suffer or enjoy. But action in Krishna Consciousness has nothing to do with such material suffering or enjoying. Therefore action in Krishna Consciousness is inaction, whereas a person doing nothing materially may appear to be inaction to others, but actually he is doing something for Krishna. In other words, the materialist thinks of the devotees as inactive.
Material advancement means there is amply opportunity for eating, sleeping, mating, and defending.
Superficially, it appears that in the USA there is sufficient provision of eating, sleeping, mating and defending, but actually nobody is safe even in his good apartment. I have got practical experience in New York. Several times my typewriter and tape recorders were stolen and the police could not take any action. There are many persons in the Bowery street, they have no shelter to live. So if a certain fraction of the people are supposed to be very materially happy at the cost of others, that is not material advancement.