Disorder is an inevitable thing, the second law of thermodynamics says so, and you cant argue with "Law". Those representing Laws wear uniforms which means they aren't people anymore. They are Laws. As such, they don't really think. They are, after all, symbols of a thing which simply "is".
Uniforms represent uniformity; order in an orderless universe.
This is not necessarily a bad thing. If you have a bunch of twenty year old men in a war-zone with lethal weapons, in charge of multi million dollar equipment, you don't want them to question orders. You want them to do as they are told. Any soldier will tell you that everyone following a bad order is much better than everyone making up their own.
Likewise, when you have just been in a car accident and you are bleeding to death, you don't want a bunch of hippies trying to figure out what to do. You want an orderly professional group of well-trained responders jumping out of a screaming, flashing, shiny machine to save you.
When you drive by some poor bastard who has just been a car accident and is bleeding to death, you want to see a orderly professional group of well-trained responders jumping out of a screaming, flashing, shiny machine taking control of the situation to reassure you that the horror you just saw was an absurdity and that order has been restored.
Where uniforms don't belong is on scientists. Scientists observe, test and make conclusions. If you need to have a bunch of orderly people saying what you want, then hire soldiers. Just don't call them biologists, chemists or physicists. When you see someone calling themselves a scientist in a uniform, telling you that the world is a predictable and controllable place, run like hell.