You've put in a lot more study than I have, which is very little, since I have no interest in Islam.

Those in SG I went to school with have had the same goals as myself from my observation: lead a good life, raise good kids (if married), see your grandkids

healthy and happy and wish the best for their future.

But, judging from the actions overall, of the ones from the middle east with whom I've had personal dealings in everyday life or working under them in a job,

which I swear I'll never ever do again) , your description above fits rather well as to what they can lie for and lie to.