They should be told tough times call for tough measures.
Though, sometimes it's a too way street. There are plenty of managers out there whose expectations are okay, but the way they convey them is bad. Sometimes it's not what you say, but how you say it. Having high expectations is good, having high expectations and calling people stupid or find other way to belittle them to feel better is unacceptable. Not saying it's like that in your workplace. Just been noticing a few managers acting in that way lately. They are drunk with power.
Don't cry, don't regret and don't blame
Weak find the whip, willing find freedom
Towards the sun, carry your name
In warm hands you are given
Ask the wind for the way
Uncertainty's gone, your path will unravel
Accept all as it is and do not blame
God or the Devil
~Born to Live - Mavrik~