As a side note related to Amazon's culture...of the people I've worked with that had previously worked for Amazon, the only ones I (or most anyone, for that mat

As a side note related to Amazon's culture...of the people I've worked with that had previously worked for Amazon, the only ones I (or most anyone, for that matter) enjoyed working with were the ones who hated working for Amazon. So anecdotally, it seems like culture fit for Amazon is largely about what you're willing to put up with. There might be a component of that at a lot of places, but clearly different companies do have very distinct "cultural" differences. Basecamp is certainly no Amazon. The diversity of different criteria among businesses makes me feel like it's not a particularly unethical practice (obviously it can be, but I don't think it is typically), and overall cultural fit would probably make you happier at whatever job you do end up at.