This sounds like a QF/AA RTW ticket and is not a Oneworld RTW ticket though. In that case, the booking class code would be different and M class would certainly play in your favour.

Your TA could have just thought that it would be cheaper to get you this RTW as it is cheaper cos you're not going many places. But that doesn't mean that you're being taken for a fool.. rather you did not voice your desired RTW ticket correctly. Your TA is just thinking of your best interest.

Besides, WHY on earth are you directing your instructions through your wife when you could very well just pick up the phone and speak to your TA directly?