Losing my religion - or my income?

Further to Liam's post below on religion and savings, here is an earnings equation with denomination using the SHARE data. Catholics fare no worse than Protestants, the reference group. There is a penalty to being a member of the Orthodox faith and an even bigger penalty to being Muslim or "other" religion, I'm guessing that the latter are largely non-Christian faiths emanating from Asia. Atheists are not penalized, in this life anyway. For comparison purposes I have included the coefficient on just one of the controls: being female which is bigger than any of the religion effects. Why there are such effects is a good question, one on which I shall remain agnostic.

	Gross income €
Protestant	.
	.
Catholics	709.6
	(0.75)
Orthodox	-3399.1
	(1.95)
Jewish	-4884.2
	(1.42)
Muslim	-7268.4**
	(2.80)
Other	-4859.2**
	(2.63)
No religion	-156.9
	(0.20)
Missing	-850.6
	(0.65)
woman	-9576.0***
	(15.87)

Controls:age,age squared, education,height,cognitive ability, country effects,
n=14,594