Uber has long term aspirations, but it is barely a tween on the scale of long-term companies. It's still unproven in the long term to serve as a good example.
Whether or not Wall St is right about Uber's future prospects, I think it's a pretty clear (non-Amazon) example of them ignoring the short-term and looking at the long-term potential. Frankly, they're probably overestimating the future opportunity of Uber, at least in my opinion.
Wall St is not the only-focused-on-the-short-term boogie man that some people would make you think. It's a very convenient excuse for some (typically poorly performing) CEO's, but it really isn't the case.