Well well, from where I'm from, the more degrees you have gives you an edge in the job market. So yes bagging double degrees in a distinct field comes with an up hand in the job market.

Having double degrees in my country doesn't come easy so when you eventually bag a double degree, you are seen as more vast in your field and you become an hotcake for recruiters who can afford to pay for someone with your level of experience. Even if you are already on a job, having double degrees gives you am additional advantage in the sense that whenever there is a promotion lurking somewhere, you get the promotion first before your other colleagues who still have just one degree.

Furthermore, there is always competition in the job market and having double degrees doesn't only give you advantage but places you above the competition because it raises the bar of the kind of job you are fit for.