It's entirely possible to say "we need to work harder, or take a risk, or be bold" while understanding where your colleagues are at in terms of what they need to do that, or what has or hasn't been communicated to them about how that will happen, or how things have been done in the past to change them.
Too often bad management or administration is justified by saying "well things needed change" or "things needed to be shaken up." There's a way to implement that while bringing others on board, giving credit where things are due, etc.
Put another way, it's easy to ruthlessly level an organization and rebuild it in the way you want to if you have the power to do that, but it doesn't mean the fairy tale you tell yourself about it having been necessary is actually true. More often than not you're just rationalizing away being inhumane and destructive, and probably even losing out on even better possibilities in the process.