Some people place more importance on themselves and some people place more importance on others.
Morality is based on truth and being considerate of all humans and the ecological environment that sustains them.
All-for-one and one-for-all is all inclusive and the evoluting way forward for least amount of sufferring and longest term existence of humans on Earth.
Self{ 1 } comes first, then family{ 2 }, then community{ 3 } then humanity.
Once 1, 2 and 3 are covered then the natural conclusion is the whole. In some scenario the whole comes first, i.e. if we do not consider the ecological environement whole that sustains human life then only considering self is very short-sighted aka narrow minded.
We have Earth full of narrow-minded people evovlving into global community. How much longer can we go forward with old ways of thinking that pit individual against individual and nation aganist nation?