Great to invest in, great to work for: Microsoft/Google in the early days
Great to invest in, not great to work for: AT&T today
Not great to invest in, not great to work for: Oracle today
There's probably companies out there that are not great to invest in and great to work for, but I don't know how common it is for them to become great companies to invest in.
Joy Covey, Amazon's first CFO, left in 2000 (I believe) and when asked later why she left she said something about the work place being too chaotic and fast paced. She attributed the majority of this work dynamic to Amazon being an internet business.
My point is just that some companies (e.g. Amazon) have work cultures typically understood as less appealing than companies (e.g. Google) with similar growth profiles and thus similar investment value profiles.
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Covey, of course, walked out with $200M+ in Amazon stock. So, work culture could be sub par while the company is still "great to work for."