Since Betsy is in blissful ignorance about Xander's infidelity, hedonists would say she's better off remaining in the dark and maintaining her high level of net pleasure.
For hedonists, the best choice that a person could make for himself is one that brings him the greatest possible amount of pleasure while bringing him no pain.
Therefore, a preference hedonist may want power to actualize ideas that can reduce suffering and increase pleasure, for themselves and others, which should increase net pleasure for the world.
The word hedonism comes from the ancient Greek hedone, meaning pleasure and some of the earliest recorded hedonists were Greek: Democritus, Aristippus, and most famously, the 4th century BCE philosopher Epicurus.
Hedonism is the philosophy of living your life to experience pleasure and avoid pain, so if you're watching this while lying on a chaise longue and eating sweets you're probably a hedonist.
We were convinced, strangely enough, in 1945 when the war ended—and my generation had all the reasons in the world to be terribly pessimistic and give up on anything and become hedonists.
From the view of a preference hedonist, the ultimate goal in life is maximizing pleasure where net pleasure is equal to pleasure minus suffering, and pleasure refers to any state that we would enjoy being in.