Why loyalty is important to the relationship?

Loyalty is a virtue which is so important that if loyalty is missing other virtue will loose their values, and loyalty is a vital part of ethics If you are disloyalty to sb, other people will judge but have no right to send you to the jail . Loyalty is a quality you should look for in a friends the relationship between people is sometimes very complecated, loyalty is like a glue making people love each other, trust each other ,it is the basic .no one can serve two master says in Bible.