Let's get one thing straight: The current populace is pretentious. The memes that dominate our culture promote everything from ego-boosting to selfishness, which in turn are manifestations of our selfish genes' primary agenda: live forever.
However, even the most selfish of memes, in spite of serving no other purpose than to complement their genetic counterparts, are justified by pitiful attempts to correct cognitive dissonance.
The majority of "activists" (whatever that really even means) have at least one of the following two agendas:
1. Preserve a personal identity partially predicated on activism. If that danged Wall Street weren't so corrupt, what would the "Occupy" activists do with their time? What would make them feel special, like they belonged to a group or had a purpose? What would make them significant in the grander scheme of things? Without something to rail against, a lot of activists would probably feel like a part of themselves had disappeared, or that they weren't special.
2. Sustain a way of life. Even if you work for a non-profit organization, you're still earning a salary. Without the world's problems, how would such people get by in life?
It's all a selfish game. Let's stop making ourselves feel good by pretentiously justifying our animalistic preservation instincts and start cracking down on reproduction. End the perpetuation of negativity by addressing causality!