There was nothing inherently improbable in Wells' choice.

Man is the ruling animal of earth today solely by reason of a series of accidents; under another series spiders or ants, or even elephants, could have become the dominant race.
"I think," I said, even more cautiously, "that the race to which the Three belong never appeared on earth's surface; that their development took place here, unhindered through aeons.

And if this be true, the structure of their brains, and therefore all their reactions, must be different from ours.

Hence their knowledge and command of energies unfamiliar to us--and hence also the question whether they may not have an entirely different sense of values, of justice--and that is rather terrifying," I concluded.
Larry shook his head.
"That last sort of knocks your argument, Doc," he said.

"They had sense of justice enough to help _me_ out--and certainly they know love--for I saw the way they looked at Lakla; and sorrow--for there was no mistaking that in their faces.
"No," he went on.