Probably. I mean, he probably is considerate to some of the people he actually cares about, sometimes. And he'll remember those times that he went out of his way to be so.

But the times it didn't occur to him to be considerate? Why would he remember those occasions at all?

So, remembering times he was considerate to others, but not even being aware of the times he was inconsiderate, would mean he probably does think of himself as a considerate person.