I would say that depends on how seriously you take playing golf virtually. If by judging how wind and turf will affect your golf ball in a video game means you remember to check those things while playing real golf as well, then I suppose it would help.
Playing virtually definitely doesn't help with touch and feel - vital elements in playing successfully in real life. However, I suppose by learning the basics of green reading virtually, a golfer could take those skills onto the golf course and improve.
Having thought about it, playing golf virtually improves your real golf game more so than playing a shoot 'em up, War game would make you a better soldier? In that sense, I guess computerized golf games do have a tangible, positive effect on your real golf game.