If you have to stay in the WT world for family reasons and you have JW privelages, then sure people should go for it...
I would have two constraints however..
1) Do not teach anything you know is untrue, if forced, say "the societies intepretation of this is..." etc.
2) Make use of the opportunity to say something that IS TRUE, easily defensible, easy to provide evidence, yet will get people talking.
For example, one elder in our area was saying in his talk "though not one historian agrees with WT about 607bce and so far no historical data indicates 607 as a time for the defeat, it is up to you, to explore all the information and decide for yourself." Then he went back to the garble garble....
I look at the years of training people need to teach in institutions, the research and hard work involved, there is no way in hell I would get up in front of 150 people and 'teach' them without ensuring every sentence was 100% true. Even then, I would only dare discuss things I was qualified to discuss. Especially when the stakes are so high.
I mentioned this to a JW friend of mine, how I could not just give talks anymore, that it would take me months to research a talk that used to take me 2hrs to write. He said he researched the WT literature, on me pressing, he said he simply trusted it. When I talked about it being a huge responsibility and to check the data being passed on in WT literature he said... "you are talking about teaching the mind, we teach to the heart!" and there ended a 15 year friendship.
The heart being a muscular pump akin to a water pump in a swimming pool, fell on deaf ears..... as did Egypt's wrong assertion that 'the heart' was in fact our brain, something the Jew's borrowed when they came into existence after Egypt. The bible is full of this nonsense. I mention this, because of the embarassment I felt after handing in my first essay on the heart at university.... a big red question mark was next to my comment "the heart is often refered to as the seat of motivation".... its just a muscular pump! My 3,000 year out of date garbage came from a WT platform and scrolls from the desert fed to me since childhood. Urghhhhhhh ! Yuk! Imagine my suprise when I saw men and women had the same number of ribs :P
3,000 years out of date garbage... that is how backward the chin wagging on the JW platforms are... scary.