Fiber networks? Their employees security by funding Police and the Military? Health care for their employees and customers?
What infrastructure are translators and lawyers using? They still pay normal taxes because they extract profits from a given country and are ought to pay taxes on it. One shouldn't argue whether he or she is ought to pay taxes. If it was the case, 95% of companies and entities would argue that they shouldn't pay a cent. All using their own, twisted logic.
No one wants to pay taxes but avoiding them is unethical and doesn't help the society at all.