You're one of those!

 Jim Wallis, one of the founders of the Sojourners community, told a story about a colleague living in a village in Central America. She worked in a community that was marginalized in all kinds of ways. She poured herself into her work for social justice, laboring with great might to bring change to this village. One day, some of the people of the village came to her, asking her why she worked so hard, why she didn’t join them in their fiestas or sit with them in their porches in the evening.
“There’s too much work to do!” the laboring woman replied. “I don’t have enough time.”
“Oh,” the people of the village said. “You’re one of those.”
“One of who?” the woman asked.
“You are one of those,” they responded, “who come to us and work and work and work. Soon you will grow tired, and you will leave. The ones who stay,” they said, “are the ones who sit with us on our porches in the evening and who come to our fiestas.”

Jim Wallis said that his colleague took the story to heart, that she became a party animal, and that she was still there.