Altruism is a major theme in It's Always Sunny in Philadelphia.

The Gang will often attempt to do good, often in exchange for the positive attention they receive in return.

  • Dennis watches An Inconvenient Truth, and decides he wants to stop global warming. He volunteers to help out with environmental activists, but gets sidetracked when he gets snubbed by one of the activists and becomes consumed with an attempt at revenge. (The Gang Finds a Dumpster Baby)
  • Mac and Dee decide to take care of a baby they fond in the dumpster. They gave up when they realized that raising a baby isn't fun but before they could give up the baby, a stranger commented that the baby was cute enough to be a Gerber baby. Mac and Dee immediately became obsessed with making the baby famous. (The Gang Finds a Dumpster Baby)
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