Krsna is providing for millions and trillions of living entities by supplying all their necessities, and even if all the innumerable living
entities wanted to become Krsna conscious, there would be no scarcity of love of Godhead, nor would there be insufficiency in providing for their maintenance. Our Krsna consciousness movement was started single-handedly, and no one provided for our livelihood, but at present we are spending hundreds and thousands of dollars all over the world, and the movement is increasing more and more. Thus there is no question of scarcity.

(From Srila Prabhupada's purport to Cc Adi 7.24)