Its very simple.
Do you have the power to enforce your view to the others? Then you are strong.
Your only options is to die or submit? Then you are weak.
So Mr Muscle lands on a deserted island with a group of 3. He tells them everyone must do as he says or he will beat them up. Mr Ranger ignores him and goes off on his own. Mr Engineer and Ms Botanist tells him to **** off and they run off together.
Three days later, Mr Muscle is dying of thirst. He sees Mr Ranger (who is perfectly fine) fishing and tries to grab him to force him to give him water. Mr Ranger simply throws a crab at him and runs off. Since Mr Muscle cannot track anything, he gives up. Later he finds Mr Engineer and Ms Botanist near a makeshift shelter with a dew collector. He succeeds in grabbing them and tells him to give him water as he does not know what is a dew collector. Ms Botanist sets up the collector and gives him water after an hour. Mr Muscle dies from the odourless plant poison Ms Botanist put in his water.
Who is strong? Mr Muscle who could force his views onto others?
Strength is measured in various ways and one who is strong in one situation is a useless weakling in another