I think a child can be naturally gifted in something, but not have the resources to meet their full potential, which is what I think you are saying.
It's not that children from deprived backgrounds aren't naturally gifted in various ways, but without material resources or time resources on behalf of a parent (which usually, but not always cuts into the usual working day) won't have the opportunities that they might have had with more affluence.
I have a child who is naturally gifted in maths (totally doesn't come from dh or I, in fact, I'm rubbish at maths). He's 6. He hasn't gotten it from anywhere other than somewhere in his brain (goes to bog standard state primary). But to encourage it, does take time and effort. We do maths together every night (at his request, I'd frankly rather he just got ready for bloody bed on time!).
But because we have both of us home in the evenings, instead of still at work, it makes this possible. In the longer run, it will take time and attention, because I have to teach myself how to do it before I can do the things he wants to do. I can do that because I have the time and resources and energy (if maybe not the will!).
We aren't 'affluent' though. No private school, no range rovers, no skiing holidays here. But we are comfortable enough to support interests and hobbies, which is obviously not something everyone can easily do.