There's risk almost everywhere, not just in Dubai which, by the way, I'd hardly describe as significant. Off plan maybe, built, less so. History has examples of expats having 'their' homes demolished in Spain because of legal irregularities, land rights contested in Cyprus, homes commandeered in Zimbabwe, Kenya and even talk of South Africa now.
Yes, UK and US along with many other places generally safe but even if you're not taking the accommodation allowance, the benefit of a free villa with all bills paid cannot be ignored. Your own house 'back home' can be rented and that's extra income as you are now no longer the one paying the mortgage, along with a notable decrease in expenditure courtesy of Company paid water/electricity/gas/etc
It really doesn't matter what source the money comes from, it's the final amount that gets into you saving account that matters, yes?