No, it hasn't. I've read the original Jurgens Booster Gold run. Booster Gold was about a superhero who was trying to make money off of his personal brand, inspired by the ad deals athletes were starting to make in the 80s. Booster Gold as conceived had more in common with the original concept of Power Man than this.
Batman Inc isn't about franchising the Batman idea to make money. It's about franchising the idea to make the Batman idea more powerful and effective through conscious use of 21st century marketing techniques. Bruce Wayne obviously doesn't care about money, nor would his "employees". They do all care about justice and terrifying criminals, though.
Batman Inc is really just a modernization of the "Batman Family" concept that comes in and out of fashion with Batman readers. Right now it's fashionable because people like the Dick Grayson Batman and side-characters like the Knight and Squire. Batman Inc is a clever way to doing this idea without just rehashing the early 70s approach directly.
This is similar to the X-Corp idea, certainly, and why not? It's not like Marvel's still using that idea. The Royal Flush Gang comparison strikes me as strained and desperate, an attempt to find some way to call Batman Inc a bad idea by somehow depriving of its virtue of originality through any comparison to any vaguely similar concept possible. I don't take such arguments seriously and they do little credit to those who make them.