Who knows the TRUE meaning of king?

The caring and the loving type of person should be king. Traditionally only the eldest son of the king gets to be the king and eveyone else is just prince. But in this day and age the being the king is just a title and it desnt really mean anything. some of them are rich but mostly its all abot having a family and to continue the leagacy of the kings and the prince family. I understand that you can still find some prince and a few kings in The Rajasthan pars of India. They dont have any power but they have families and lagacy. Otherwise the only other king I've heard of is in England. Well good luck with the search and happy mylottinghelper