None of the statements mentioned can be true nor applicable to every individual, as each individuals' condition varies. You need a balance in everything, so if you are a person who understands the rights of people and have a balance in regards to giving each person their rights or in your dealings with them, then you will treat everyone well.
But when the above is not the case, that's when you hear of people who are good to their wives but not to their parents, or you have people who are good to their parents but not to their wives, etc.