Yes - except the point of Part 107 is precisely to teach you what you can and cannot do safely, and how to do it. That guy might be flying at tree top level today, but with equipment that can go much higher and further. And you only have to look at YouTube or read many posts on this forum to realize that many people are perfectly willing to go higher and further - much higher and further than is consistent with safe operation in the NAS. I'd wager that Part 107 pilots are, in general, much safer than many just flying under Part 101.
All of which suggests that everyone should be required to be trained if they want to use that kind of equipment, but Congress, of course, prevented that from happening, so the FAA regulated those pilots whom they were permitted to regulate.
Are you serious in suggesting that this is about money? Who do you imagine is profiting from Part 107?