At Elaine's request, George purchases a "big salad" for her from Monk's. When his girlfriend appears to take credit for this, George becomes obsessed over the issue. His altruism is not pure: George derives utility from the fact that the purchase is associated with his generosity.

The significance of a product is highlighted if it can bring utility to a large community of people over a long period of time. Social entrepreneurship involves recognizing and executing an opportunity to improve the livelihood of others.

Akeelah makes it all the way to the final round of the National Spelling Bee, but prior to it, she overhears a heated conversation between her rival, Dylan, and his father. She decides to lose on purpose so that Dylan will win the competition and the affection of his father. Dylan later states that he wants to win only when Akeelah is trying her best.

Sheldon and Raj discuss the pros and cons of getting tenured at the university.

It is scientifically proven that with incentives there is an increase in motivation to do something- this is called the Drive Theory.