Second, Paul doesn't suggest that in considering another better than self we are to accept that as reality: that they really are better than we are, more important than we are. That's where far too many people live already: feeling inferior to others, and it's totally wrong and counter-productive in terms of becoming other-oriented. Neither does Paul suggest that we "pretend" in some way that the other person is more important. No, what Paul encourages us to do is to make a conscious decision to make the other person: their heart, their interests, etc., more important than our own. It's a solid decision, made in the heart, that reveals itself in how we think and act.