If asked to 'meddle' by another, explain that you will accept only a position of mediator, in an attempt to preserve peace. You may display your belief in a point of morality, but you may not require another to live by it. Likewise, you do not have to accept the beliefs of others. Society demands that we behave in certain manners. Society wants this behavior so much, that persons throughout history have used power in the governments created by men to create laws requiring certain behavior.
People are ignorant creatures for different reasons.
It is usually because they wish to gain something for themselves. Their desires arise from positions of ignorance, selfishness, influence, and greed. Learning to get around other's expectations and restrictive laws is a full time job. However, it is always the most unusual people that make all the great things happen. These people are very often the strongest persons in the society.