The reason they have not "gone bankrupt" is that their guiding principle is to bring out the "good" in human nature. And of all the great monks and teachers and religious leader of all generations, none has acted for his own benefit. All have acted for others, not themselves. Only because of this have these belief systems been passed down for so long.
沒有倒的原因，就因為它的宗旨在發揚人性的「善」，而每一代的高僧大德、宗教領袖，沒有一個人是站在自我的立場，都是為人、無我的，唯有這樣，才能可長可久地傳下去。