So much for beer mixers and salmon barbecues. For its 50th anniversary, the Nature Conservancy of Washington pulled out the stops: a grand Born to be Wild Gala at the cavernous Fremont Studios. Actors impersonating Teddy Roosevelt and John Muir greeted arrives. The 550 guests, who’d paid from $150 a seat to $10,000 a table, trailed through a mock campground, complete with potted pines, pitched tents, and piped-in babbling brooks, croaking ...