The meaning of the word value in the third sense says:
That which is valued or highly esteemed, such as one's morals, morality, or belief system.
Does the word value in moral values relates to this particular sense?
Do moral values mean things that one values in matters of what is right and what is wrong?
What about values such as, social values, political values, etc.?
In that sentence the noun "value" means "principles or standards of behaviour; one's judgement of what is important in life. Therefore "moral value" means "moral principles, moral standards", what morally one can do and cannot do.
Social values are a societies principles or the standards of behaviour.
Political values are not any different. They are the philosophy of politics, the standards of behaviour of politicians.
