I profoundly disagree. You may very well be right about the majority of that money servicing large corporations, but bear in mind that we're talking about a pot of money the size of Jupiter here. Payment processing alone is worth somewhere in the region of 1trillion USD annually. And that's just for moving money i.e. shuffling rows around databases. Bitcoin, while definitely imperfect, offers the hope of innovating this whole industry into oblivion and replacing it with something entirely autonomous.

The insurance industry is worth another ~5trillion USD annually. The name of the game here, of course, is predictive analysis and I'd bet that my Netflix recommendations are more accurate than any assessment any insurance company has ever made of me.

I think you'd have diversification up the wazoo in extremely short order.

Edit: accuracy