Blood vs. Frogs, Which is worse?

In Lku"s the Rebbe says that kaltkeit is worse then a varemkeit for bad things as it easier co-opted and returned to the good.
I find that many people who have trouble believing in G-d have very heightened sense of wrong and right and are not easily convinced by intellectual answers and their status is really a cry for wanting a perfect world. So too with people who are apathetic, I find with myself it can be a response to being burned in one's hopes and the fear to get hurt once again. But underneath it all is a fire waiting to bust out.
So even though kaltkeit is worse the potential for greater heights is ever present. And this falls in line with the principle of Kol HaGvoah beYoser etc.