It is unfortunate when a talented teacher, as the OP seems to be, turn to industry for (significantly) more money, but this seems to be the way the market works pretty much everywhere around the world.
There are however some advantages to an academic job: somewhat more flexible schedule (not when you're teaching), relative freedom to engage in whatever research you wish, no need to sit in front of a computer screen all day, job security.
There are however some advantages to an academic job: somewhat more flexible schedule (not when you're teaching), relative freedom to engage in whatever research you wish, no need to sit in front of a computer screen all day, job security.