Sorry, Roadtoad, I don't really agree with this. Even in the era of mega-churches, mega-pastors and (perhaps) mega-egos, the fundamentalist strand of Christianity preaches against doing things just to make you look good in in the eyes of either your friends or the community at large. The cue comes from the Gospel of Matthew:
I came out of the same tradition Kathy is in. I think she would be offended at the suggestion that's she's doing this just to look good to her friends. She's not even doing it as an attempt to get into heaven or to gain favour with God.
Fundamentalist Christianity teaches that the "saved" have already gained God's grace, favour, and salvation. They need not work to gain entrance into heaven, although good works done on Earth will build up the reward in heaven. (The exact nature of this reward is never truly spelled out, since another part of the teaching is that being in heaven with God is the reward.)
Kathy's motivation here is to tell us about her God--her Lord, who (in her mind) has given her great and wonderful things, and is willing to share them with us too. It's as though she has met a rich and powerful philanthropist who has given her a million dollars, and she wants everyone else to know that he will give each of us a million as well--just for the asking!
We're trying to point out that the million dollars are entirely virtual and comes with some strings attached.