The problem is that the guy didn't "invent" anything, more like had a farfetched idea and left all "the practical details" to others to work out. That's like saying that Meliès invented space travel - he too had the idea of flying to the Moon in a gun projectile ... It was only non-functioning mockup, at best, because the vacuum tube electronics of the era was simply incapable of producing a wireless device with thos…
That seems a little unfair to me. In many cases an original idea, regardless of ability to execute, is priceless. I agree that execution is everything in terms of winning, though.
This is why patents are harmful imo (without even getting into patent trolls), all they do is restrict the commercialization to the one who was the fastest gun in the west at the patent office and hold back society from developing the technology further because the patentee has no incentive to improve the idea while they enjoy a two decade state sanctioned monopoly.