I'm going to simplify this a little. Actually, a lot. But the idea is the same. I have an ice cream cone. In fact, I have two. One for me, and maybe one for you. But, If you do not like ice cream, giving you one is a waste. So, I ask you if you want it. You saying "Yes, please" in no way cheapens my giving you a gift. It in no way makes you less "deserving" or "honorable". It's simply more efficient.
Now, naturally, if "salvation" is necessary, then it's a little more important than "Do you want ice cream". However, I do not truly see how asking for forgiveness when it is offered is really any different. You can stand in line for food, but no one will give it to you until you tell them what you want. And then, you will starve, and it will not be anyone's fault. Some people have their own food. Some people need to get it from someone else.
I guess the point is, the offer is already made on things like this; you just have to accept it. If you do not need what is being offered (and there is sufficient evidence to suggest that the jury is still out on whether everyone needs it or not) or you do not like what is being offered, then don't take it. But it's more about accepting, I feel, than begging.
Edited by Creationista, : No reason given.