When did Marjorie EVER say that she had any "divine insight" into the local culture, or that the locals weren't capable of that themselves? It seems to me that she's arguing that it is useful and proper for non-citizens to voice their opinions about their host country's policies and practices because they generally see things from a different angle and can provide a unique perspective. She's not arguing that foreigners have inherently more correct ideas and thoughts than the locals -- only that they, too, have valuable opinions to share on the subject.

Dealing with and debating people who disagree with you forces you to articulate your own stance more clearly, either strengthening your argument or highlighting why your argument isn't as soundly based as you perhaps thought.
I would think that is something Qatar and Qataris would welcome. It's certainly something that those of us involved in education try to encourage and foster among our students.

And just in case you don't know Marjorie personally, she's one of the least arrogant people you'll ever come across in your life. Calling her "arrogant" is like calling Cristiano Ronaldo "clumsy".