If one only sees the competitive aspect of society, then yes, there is no shame in doing better.
But society also has a cooperative aspect. There is no shame in doing better, but you should feel shame if you are doing better AND you are not helping those behind you.
Reaching the top of the mountain? No shame there. Not giving the folks behind you a hand up? Shame!
The real moral dilemma comes, though, when you have to choose between helping the people behind you, or advancing even further in the race, where maybe further on in the race you could potentially help people even more. Sure guys, I can give you a hand up, but I’m thinking that over there on the next cliff there’s a rope and a bucket...
Is it possible that this person was deliberately avoiding such statements of declaration?
I imagine myself, hypothetically, discussing physics with an opponent who only believes in Aristotelian mechanics. I’m not going to come right out and declare “Objects at rest stay at rest”. Instead, I’m going to say “I believe that objects at rest stay at rest”, going under a mock hypothetical that perhaps my belief is an opinion and not a fact, and then slowly try to win my opponent over. Making guarded declarations instead of absolute declarations is a common tactic of persuasion. (I almost typed “appears to be a common tactic of persuasion” in the last sentence, which shows how strong this tactic is.)
Given that, I find it possible that the person actually did believe that God exists, but felt that saying “Oh, and by the way, God actually does exist” would have been unproductive. She could have been trying to construct an argument that goes somewhat like this:
(1) I believe that God exists. (2) I am an intelligent person, therefore my beliefs are true. (3) Therefore, God exists.
Perhaps it was clear to her that you didn’t believe (3), but she was holding out hope that she might convince you of (1) and (2), which would then force you to believe (3). If that is her line of attack, it would do her no good to declare (3), as it would more likely alienate you and make it harder for her to persuade you to believe (1) and (2).