Bankers' hours nowadays

The purport of the phrase "bankers' hours" has deviated so much from its root. Nowadays (investment) bankers are so used to working graveyard shifts and day shifts back to back. Gone are the days of easy laboring in the banking industry. On the other hand, ironically, many civil servants in Canada tend to work bankers' hours with long coffee breaks blended in, day in and day out. Well, who doesn't want to be that kind of "servant"?