Doubt. A 5-letter emotion word, hence less significant than love, but as significant as anger. What is doubt?
The assessment of unlikelihood.
The calculation of improbability.
Or from the pocket Oxford: Consciousness of uncertainty; to disbelieve in or feel doubt or distrust
In Christianity, the emotion is criticised entirely through the parable of Doubting Thomas. It is doubtful that Doubt has any moral defenders in societies evolved from Christianity. To believe and to go about believing with a shining look in your eyes is to be committed to the social group, one more sheep in the flock who together affirm each others' belief of unerring certainty. Hence in Christian societies, doubt is anti-social, and can only arise randomly in individuals, or else enter from the assimilation of an indigenous non-Christian culture.
Tony Blair, as a leader, was a notorious example of the Believer, whose self-belief and lack of self-doubt made him the ideal leader for a nation of lost sheep who had abandoned its Christian ancestry and not even obthered to understand its legacy and influece. The fact that it was only after he left office that he could voice the strength of his belief is proof how blind the secularized British nation were to their evolved Christian need to have communal Belief.
What does this mean for the doubter in a nation of sheep who do not understand the substantial degree of influence of Christianity in their makeup?
Rationally, in a society of believers, the doubter, being the assessor of improbability, provides an essential service. In such a society, the doubter would necessarily be made a lonely person and would be compelled to overcompensate for being surrounded by unquestioning believers.
The service provided by the doubter would inevitably go unrewarded by the masses of sheep, and consequently any reward would have to be either by a gratuity from another individual , or through individual gain.
Instead of believing any of this, it is normal just to listen to Marcus Brigstock and laugh while he gets paid for doing everybody's doubting. Then revel in secularity while denying any inherited need for communal beliefs.
Finally, let the Hedge Funds develop and apply the mathematics of human market behaviour. Their mathematics, together with certain branches of economics, have the closest analogy to Asimov's science of psychohistory. They do not provide the free services of the Doubting Thomas, but prefer to play God, by calculating the likelihood of sheep-like behaviour, the likelihood of predators and weather, and securing their own rewards and wealth long before a winsome innocent boy and a sheepdog is sent as a messenger to cry "Wolf!".