You should also use your brain... we are talking about early days of islam, when no of Muslim are very limited. During 1st war with Non Muslim, no of muslim were limited. not in thousand's.
2nd; you are right same like people, there leaders are also same... no doubt N S and A Z were corrupted, because our nation is corrupted. here i want to also accepted your sentence that as our nation is stupid, that is why Allah Subhanallah appointed stupid leader on them.
In our holy book quran and Prophet(pBUH) sunnah every thing is clear,, and punishment of each crime is also clear. who did corruption, pit them behind the bar for life term ,,,, if some murdered,,, hanged him and in Our Islam there is also very serious crime.. adultery... i no need to explain the punishment for this crime.
According to Prophet (PBUH),, there is three sign of munafiq,,, NO 1.. when he speak, he lie. I don't want to explain how many times he lie with nation...
Yes, Turkey and Iran people's and there leaders are very sensible because there never give stupid statement about our dignities. and they never did crime like Ik did.