"Did I read somewhere that US companies have rights like a person or something similar? Well, if found guilty, jail FB for 20 years"
Probably. See e.g.
https://money.howstuffworks.com/corporation-person2.htm
which basically simplifies to
"US companies have the same *rights* as a real person, but do not have the same responsibilities as a real person."
In the real world, these matters are also subject to the usual "golden rule".
That is, the published rules can be overriden by people with sufficient gold.
The USA has the best lawyers money can buy, London has the best auditors that money can buy.
After Brexit, once TTIP is resurrected, they'll be unstoppable.