I don't think when people say their workplace has poor work-life balance, it's not typically to the extreme you mentioned, it's more mild, like boss calling on weekend, after hours work, etc. I don't think you can have mild discrimination, sexual harassment or verbal abuse. Perhaps verbal abuse.

Sometimes though, you get real winners like Blizzard with all of the above recently. I know enough to never work in the video game industry.

Some companies also require your work-life balance be broken down in order to advance. This is usually an unwritten requirement, and failure to participate makes you "not a team player," "a poor fit for the company," etc. I remember my father left a job because him going to see his father in the hospital after work instead of grabbing a beer (or a golf club) and shmoozing with the higher ups all but guaranteed he would never make partner at the firm. "Yeah, you might have kids to raise and your dad might be dying and all, but maybe join us instead so we can get to know you better and discuss your career ambitions" is one of the most disgusting attitudes I've ever heard, and yet many law firms still act like old boys' clubs, and a failure to suck up early on will impose a hard cap on your career. I would consider this to be a toxic workplace, both because of the "we're all family here (which means your family comes second)" attitude, and the implicit "if you bring in tons of business but don't fit in with our culture, you might as well start polishing your resume unless you're happy staying an associate."