The episode also adds up more reasons to like the guy, he is the last known survivor of the planet Hubbard and was sent to Earth, ala Superman. Unlike Clark, instead of a humble family from Kansas adopted him, we have a bunch of scientist examining his intelligence like a lab rat. If you think of it well, it is quite surprising that he never went insane like most aliens in his situation! It's one of the factors that made him admirable asides that he puts others first before himself as seen in the scene in which he was held by his kidnapper.