you have stay until they kill your spirit just because Uber is a cool company?
I can imagine people keep staying there if they have to feed their hungry children and pay mortgage in a very bad economy, but not just because its a "Cool" company.
And I also wrote about the dangers of job loyalty a few years later: http://khanism.org/society/loyalty/
It's like the Milgram experiments: people often don't realize they have options. They don't want to be one of those people who "keep switching jobs." My longest job on my CV is 2.5 years. Most are only 1 year. I worried a bit about job loyalty until I realized no one even read the dates on my resume. Average turnaround in our industry is 13 months.
You can get a new job. If you're afraid of jumping too much, don't have more than three a year. Surely 1/3 of those is going to be tolerable/not-horrible enough to get a nice 13 months on your CV. If you're in IT as a dev, admin or some kind of engineer, there is a ton of interesting work. I agree with you totally. There is no reason to stay in a shit job. There is plenty of interesting and challenging work in good places for both men and women in our industry.
It's easy to look back and say "Oh this is a bad company" but as it's happening it's easy to say "Oh this just happened once." or "Maybe it's me." or "Well Mike sucks, but I can deal with it, it's not that big of a deal, and there's a lot of benefits to staying like fulfilling work and being able to work with great minds. I've learned a lot from my other coworkers." or "Maybe I can change things, maybe things will get better." or "I can resolve this if I keep working with HR, it will be fixed soon."
Not-Amy said it was exhilarating the first 2 months, if overly hard work. In a company of that size, I too would totally expect working with HR to be the fix, as it usually is. I mean do you quit your job the instant you have a shitty coworker? I too would try to resolve my issues first internally first. Because that usually works. When that didn't work, she quit and rightly called them out on being ridiculous.