What most likely made this exercise "less of an experiment and more of a demonstration," according to the researchers?

there is an explationation of this on a site called crash   course world history 1

they had freedom from the government and from the affairs

it´s related to his charming character.

beauty is not everything, although we can joke that girls only care about the physical or material aspect, the truth is that a real woman looks at more important things, besides intelligence and personality, there are other attitudes that make irresistible to men who are 'unattractive'.

for example develop your sense of humor.