An early nihilist mutant hid behind the good of other men. It held that pursuing your own good is wicked, but you could rescue your virtue by serving other men's good. This, of course, is altruism. Altruism had a long run, but was doomed by its own nihilist origins. After all, other men's good means other men's selfishness.
Collectivism is another nihilist mutant.
Collectivism, too, is doomed by its nihilist essence. Groups are made up of members, and there is no good of a group apart from the good of its members. So we're back to plain old individual selfishness. Environmentalism is the latest nihilist mutant. It holds that man's good must be destroyed, but the good of other species preserved.