The idea of characterizing an entire generational cohort as having a group character is as ridiculous today as it was when the boomers were the journalistic fodder for their era.

The professions, especially legal,  have always been conservative and addicted to a masochistic, macho culture. I recall in the Sixties, having to share a single antiquated tabulation machine with all the other juniors in my top-drawer accounting firm even though electric adding machines were by then commonplace in business. I recall my grey-faced, thirty-something managers working themselves literally to the point of heart attacks to make partner. I remember working 24 hours straight to make arbitrary deadlines that probably didn't matter. I remember lawyers in the Eighties who wouldn't touch a computer keyboard because that was for secretaries. 

It's not a millennial/boomer thing, it's macho corporate culture. Perhaps women professionals can now found firms that have a little more common sense.