Phileas Fogg.....lets just clear that one up. Not in the history of professional aviation has ATC ever been "in charge" of an aeroplane.
Every single ATC instruction whatever it may be is OPTIONAL for the Captain who is the only person legally in charge of an aircraft.
Thanks to others for your support ...
It's some 37 years since I did ATC, so I don't take it personally any longer, but let's just make this clear 'bche' ... If there is an aircraft already on the active runway and I instruct you to perform a 'go around' then you do the damn hell as I tell you or you can foxtrot oscar to some type of Ryanair airfield that might accept your "I am god" type attitude!
Amen