And yes, economical, political, social motives can be transformative - "If I would be a Catholic, instead of a Protestant, then I'd have a better life - I'd earn more money and have better social status." There are socio-economic contexts in which this is true.
And you do not see any ulterior motive in changing religious affiliation solely for economic, political, or social gain? Such a conversion is not religiously transformative, only transformative in the areas of these ulterior motives. Merely claiming to believe a certain religion is a purely social artifice. There is no actual religious transformation without a religious change that can be distinguished from all other such ulterior motives.
Socio-economic status can be an important factor in a person's wellbeing; for some people, it is the crucial factor for their wellbeing. Without a measure of wellbeing (and this measure can differ from one person to another), a person cannot attend to what they believe to be higher, or spiritual pursuits in life.
Only as an excuse, as any real believer will be so regardless of the vicissitudes of life.
That is probably the most common central theme in many theistic doctrines: the inner struggle of the believer between following what are considered the "lower urges" and "divine urges" - it requires power to resist the lower urges.
So now you are going to conflate willpower with the desire to control others? So willpower leads to war?