Who said "Work is only meaningful if it helps people"?

This quote is attributed to Kenny McCormick.

Work is only meaningful if it helps people - Kenny McCormick

"Work is only meaningful if it helps people"

Kenny McCormick Work

"Mmph mmph mrmph!"

"I'm not fat, I'm just big boned"

"Dude, we're in third grade"

"This is so cool"

"Hard work never killed anybody."

"Work with purpose and integrity."

"Hard work pays off in the end."

"A man's gotta do what a man's gotta do."