Then the stewards need to make it clear. Perhaps the severity of certain incidents determine the outcome of the action?

Hamilton's move on Rosberg was absolutely nothing like Kimis on Bottas in Sochi other than them being side by side at some point. Kimi crashed heavily into Bottas taking him out of the race, whereas the Mercedes drivers touched very lightly while trying to win the corner. Intimidation is part of racing and how drivers push their authority when trying to get past and win. Ask Schumacher, Alonso and even Kimi when they are in the alternative position.