That's an interesting question.
Does traveling to some place helps you to understand and know it better than spending a few hours on Wikipedia and youtube?
That begs that question “what does it mean to visit a place”? I’ve been to a lot of places for both fun and work. I’ve thought a lot about this. Does it count as a visit if you only go to tourist places and hang out with other tourists? Does it count as a visit if you spend your time just at the house of a local speaking with locals but never seeing the sites?
There are. But downsides are greater as they lead to destruction of very places they visit for their beauty.
What if the benefit is that they vote to protect those places when they wouldn't have before?
That is big IF. I can say opposite: what if they do not care anymore as they already saw the place. It has same validity.