Just a general observation, and not directed personally at anyone, but I've noticed that many people, many of them Christians, seem to do a lot of talking about love, but not much loving, in an active practical sense. Or that simply talking about love somehow gives them the moral high ground.
It's easy to talk about loving one's neighbor but how does that work out in real life? What are we, what am I, actually doing? (I've been giving this a lot of thought since listening to the Gospel on Judgment Sunday). Loving one's neighbor doesn't only mean that we have no animosity toward them, or have refrained from stealing, lying, murdering and coveting. It seems to me that it's not enough to talk about it, or to have nice kindly feelings toward one another.
Thus, what we believe does matter.