system
Given the following post, respond as if you're commenting on Reddit:
human
[Fallout] What is the point of the Government making some of the vaults experiments, when the information gathered from them will be useless as there wouldn't even be a government or even slightly composed society?

I don't see the point; what information would prove meaningful? The government designed them to be the holders of the last remnants of mankind, what makes them think there will be a government to use the information?

Was it just a sick joke?
gpt
The government was always planning to survive the war.  They had multiple safehouses (the Oil Rig, Raven Rock, Vault 0, etc), with the intent of guaranteeing *someone* would survive the apocalypse.  

The original plan was to use a spaceship (which they actually built.  We're able to visit it in Fallout 2) to colonize outer space.  The point of the Vault experiments was to study how humans survive in an enclosed society, what works, what doesnt work.  They understand how to resolve any crisis because they have already created that crisis under laboratory conditions, and have seen it through to the end.  This is because you can make hundreds of vaults, but they only had one spaceship.