LOL, no they don't. In certain situations, things become more lax, but they most certainly don't get thrown out the window, especially when it comes to aircraft.
If an aircraft has been idle for any length of time, you don't want to try to be flying it. Between hydraulic fluid and seals, they are pretty temperamental things, and unlike a car (where if your engine or transmission goes you just stop going forward), an aircraft falls to the ground with much prejudice if something fails.
For terms or full disclosure, I have never worked on a MIG or other modern fixed-wing aircraft. But I was a mechanic for several rotary-wing aircraft (primarily UH-60), and you cannot take a grounded aircraft and make it airworthy without a ton of work. Even in time of war.