Dutchman De Vries has a super-licence after winning the Formula Two and electric Formula E championship and has appeared in Friday practice for three different Mercedes-powered Formula One teams this season.
He has yet to secure a seat, however, while Herta - who does not have enough points for a super-licence - is in the frame for an AlphaTauri drive if the governing FIA give the go-ahead.
"I trust in the governing body and I think rules are there to be respected," De Vries told reporters at the Italian Grand Prix after a practice stint with Aston Martin.
"There are plenty of other drivers in the market that have the super-licence points, and the necessity is not necessarily that high to go and give someone a dispensation to give a super-licence.
"It will give an incorrect precedent and example to Formula Three and Formula Two championships," he added
"I think it will be a shame if we jeopardise our system, and I also think it’s unnecessary."
