Right. Frankly, it's rare that the folded/live hand will win, so I use that rule in my games (and would like the TDA to adopt it). But it's also very rare for someone to ask to see.
Also note that I deal for a pub league. We have some very stupid players, who may actually bet and fold winning hands without realizing what they are doing. The 'live hand' rule may help reduce the number of requests to see.