Yes. I'll add that Google's initial goal of a search engine that is actually helpful (not just algorithmically, but without clutter and without paid-placement) was plenty inspiring... especially for great developers. And, being more concrete than their general abstract corporate mission statement, it was actually more inspiring.
I want to add the mechanism of success-due-to-toy: incumbents dismiss you, not as incompetent, but as irrelevant to them. You're not stealing their customers, because you're meeting a different need, and are worse at what their customers want - further, the incubents couldn't fight you even if they wanted to, because they can't afford to desert their customers.
Then, over time, you improve til you are good enough for their customers - while stll meeting those other needs. The exodus begins.
I want to add the mechanism of success-due-to-toy: incumbents dismiss you, not as incompetent, but as irrelevant to them. You're not stealing their customers, because you're meeting a different need, and are worse at what their customers want - further, the incubents couldn't fight you even if they wanted to, because they can't afford to desert their customers.
Then, over time, you improve til you are good enough for their customers - while stll meeting those other needs. The exodus begins.