Campbell, only the second New Zealand golfer after Sir Bob Charles to win a major, told the European Tour website he has been a keen spectator of the London Games.
"For the past three weeks I've had square eyes from watching the London Olympics and, without doubt, it's been one of the greatest sporting spectacles I've witnessed.
"We've seen the incredible passion for every conceivable sport during the Games - from the competitors to the spectators - and the energy and enthusiasm for the Olympics has had an effect on so many people.
"If this passion can be transmitted to golf in 2016 then it has to be great for our sport."
Campbell, who will be 47 at the when Rio rolls around, still holds the desire to compete.
"Look at what the tennis gold meant to Andy Murray. I speak to other golfers at tournaments and I can sense the enthusiasm for Rio.
"Whoever wins the men's and women's gold medals will go into the history books. After the spectacle we've just witnessed in London I, for one, can't wait."