Say I made a patent to open the garage door with my phone. On the plus side, I can sue everybody that makes products with that idea and make myself rich, or at least well-off. On the down side, I am making a patent out of what the patenting office would call an obvious invention. Since obvious is in the minds of a jury and clever lawyers, I no longer need a good idea, I just need a good lawyer.
In the process, technologist, who are in short supply given that most of the population has trouble learning logic, algebra, probability, and calculus; In our quest for money are giving all the booty to the Lawyers, which although a respectable profession, it posses no as great a challenge to master, and certainly does not grow the economy the way a new battery, or an AI algorithm would.