Really? I've not read any of these books. But I must say that I'm skeptical of any discussion of "the artistic temperament," as though it described some monolithically-present characteristic.
If all artists were like Vincent van Gogh, for example, they'd all lop off a portion of their ears and off themselves. So far, no epidemic of ear-loppings and self-offings among artists has been reported. (Not to mention many more wonderful paintings.)
And if all artists were like Michelangelo, the subject of The Agony and the Ecstasy, we would have many more sculpted masterpieces in the world.
It seems to me that there are probably as many artistic temperaments as there are artists.