That's one vexing question posed by David Hare's deceptively intimate, intricate Skylight, now being revived (***½ out of four stars) at Broadway's Golden Theatre. Set in London in the early '90s, the play focuses on former lovers with clashing perspectives. The middle-aged Tom, played by an animated Bill Nighy, has amassed a fortune in the restaurant business, and has clearly not lost a wink of sleep worrying about the less fortunate.
Kyra, a younger woman — portrayed by a dry, marvelous Carey Mulligan — worked for Tom until their affair ended three years earlier. She now teaches underprivileged children, and finds Tom's chatter about the social contributions of businessmen laughable.