Can they though? If all of the money is kept in Estonia for example, and none actually goes through your identity or a business elsewhere - then that company wouldn't have any right to it from my understanding. Until you pay someone in another country - then the other one can't dip their hand in it. Isn't this why so many companies are based out of random countries to begin with?
It's hard to spend money that is hidden from local tax offices. Local authorities can even blame you if your lifestyle is higher than your declared income.