How big companies having lot of hashpower can hide - their presence and locations are in many cases known.
The Bigger issue is that if you change the blockchain against some of the rules there will be some community creating side chain like ETH adn ETC.
The price will drop also. So even you act against the rules as mining pool you don't do it on large scale.
If there is no rules or cash is general in shadow sphere than yes there is a little chance of court solution.
Not fitting in any system leaves you dependent on market reaction backup as only and last backup.
Fitting in some law system is difficult but gives customer and sometimes product owner extra laws.
DAO with rules if hacked then it is theft in 100% in law and social term. DAO without rules has no rules also of exploatation.
ICONOMI did succeed.
DO did almost. maybe they started too soon with to similar IDEA.