Since the first part of your question (how do morals and values guide your life), I'm going to touch on the second part (how do moral and values guide the lives of others). I think it would be remiss not to consider how the dominant religion impacts the whole culture of a country. A countries own religious and cultural values play a part in how inhabitants view cultures that our different from ours or people within our culture that deviate from the norm. For example, a woman in a Muslim country might be looked down upon for not wearing a head covering even if she isn't Muslim.
More than anything, it seems that morals and ethical values fostered by religion/culture provide people perimeters. In other words, there are certain acts that they do not commit, there are certain beliefs that they hold which direct their lives. Religious beliefs, moral values, ethical standards all give direction to people's lives.
I don't understand what you mean by "in specific religious groups" and then the part about you and others. Do you mean something like "how do Christian values guide Christians and Hindu values guide Hindus, etc...?
I think that this depends very much on how devout a person is. A very devout person will have their whole life guided by their religion's morals and values, regardless of what their society believes. By contrast, someone who is less devout may have their life guided to a small extent by their religion's values and to a greater extent by other things (for example, an American Catholic who rejects Church teaching on birth control and divorce but abides by it with regard to not eating meat on Fridays in Lent).