You are trying to justify the existence of an industry that doesn't need to exist. The great unwashed don't need their 'thrill' rides and the people living underneath the routes certainly don't need the noise and worry about accidents.
The Grand Canyon certainly doesn't need the noise and air pollution - something like 400 flights a day in what is supposed to be a beautiful and tranquil place - just to service a bunch of lazy people who can't be arsed to go and walk down into the canyon to admire its majesty. The next step is the awful Escalade that planners keep pushing for.
When making money can only be achieved by taking and putting other people at increased risk with no tangible upside other than a thrill, maybe that money making just shouldn't happen.
This is a great post, crab. Seriously, because now I finally have an appreciation for where you are coming from.
Tell you what: when you are the absolute ruler you can outlaw things
you think other people don't need. In the meantime, capitalism reigns, freedom reigns, people will make up their own minds, and if there is a market for what you think is something too risky, or too annoying, or too whatever, it really doesn't matter, does it, other than that it makes you unhappy. The market will seek it's own level. If insurance rates go up, or everyone is arrested for murder, or whatever, then the little guys running the little shows will dry up and you'll be happy. Or they won't and it will be business as usual.
And how is this any different than driving in cars? Imagine this dystopian vision: did you really
need to go to the store? If you had only ordered off of Amazon you might not have hit and killed that innocent person, not to mention all the fuel you wasted.
People do a million things every day that put other people at risk and that they don't need to do. That includes pretty much all of general aviation. It's called freedom. It can be ugly at times, but the pluses outweigh the minuses by a long, long ways for dare say most of us.