By the glow of candlelight, the Oscar nominee Mark Wahlberg and 10 friends dined on foie gras and New York strip steak this week as they looked out over the lights of Los Angeles. The meal was gratis, and so was the Champagne, elegantly poured by silent, liveried servers at Soho House, a British-style private club practically created overnight in an empty mansion for the week leading up to Sunday’s Academy Awards ceremony. It caters to the whims of Hollywood celebrities while marketing an upscale lifestyle to discerning consumers on its guest list. This is the new swag, a twist on the widespread practice of giving to the already rich and famous. Sharon Waxman reports.