I agree, but I think this is what makes SV wonderful. You have to be somewhat naive to think your approach is going to be better than the status quo, particularly when your competition is well established, and probably well capitalized.
The reason why big companies can't turn on a dime is that they have a lot of people who work for them, and an existing customer base. It's difficult to align all of those people on a new, and potentially better way of solving a problem. It's not that they are collectively "idiots", it's that they have an established business with an established track record. This is quintessentially the Innovators Dilemma. Technology markets almost always move downmarket to the cheaper solution which at first looks like a "toy".
Yes! I wish more people would actually read that book instead of throwing the word "disruption" around vaguely. After reading it, you'll realize the established business almost always has the advantage, and start ups only succeed in certain environments.
The reason why big companies can't turn on a dime is that they have a lot of people who work for them, and an existing customer base. It's difficult to align all of those people on a new, and potentially better way of solving a problem. It's not that they are collectively "idiots", it's that they have an established business with an established track record. This is quintessentially the Innovators Dilemma. Technology markets almost always move downmarket to the cheaper solution which at first looks like a "toy".