I suspect you may have cause and effect reversed. Government employment is not soul-destroying; rather, government self-selects applicants from the pool of people who enjoy legal theft and extortion and telling others how to live their lives. It's difficult to destroy a soul that doesn't exist.
I think your analysis is pretty cynical, but not cynical enough. Government employees, as a class, are not interested in doing anything but avoiding work. They certainly don't have any political philosophy driving their actions.
I wish someone had told me that back when I worked in the public sector, all my colleagues too! We thought we were all trying to execute public services well. Is the work avoidance conscious or unconscious? If it was unconscious have I lost it now that I work for myself or am I secretly undermining my own business? Please, tell me all about myself.
You're right of course. Government is a model of efficiency. Government workers are often found working late into the night, and if you look at the parking lot at most government agencies at 6PM you'll find them full. You will never see a rush out the door at exactly 4:00. It would be shockingly bad customer service to close the door at 4 when people are waiting, and that's why government offices never do that, expecting you to show up the next morning.
You'll never find that a government worker refuses to show up to do some essential work, even though overtime is not approved. I mean, they are on salary, so it would be crazy of them to demand overtime pay when in any non-government job they would be considered exempt salaried employees and would not qualify for overtime.
Besides these great qualities, government employees are known for how much they try to make the system work for people despite silly bureaucratic rules.
Finally, they treat each other well and respect the institutions they work for. You certainly wouldn't find that government workers routinely sue their employers when they are passed over for promotions with cause. And it would be crazy to imagine a world where hiring and firing were purely seniority based, all government workers want the government to have the best team possible, and they wouldn't support a union contract that put their own job security in front of all semblance of meritocracy.