Good for you! Hopefully in the future, there will be more specialists in the field of ant science/myrmecology and lots of progression on this field. One day in the future, I might be able to take my ants to the vet!
I also hope that sooner or later for other people, being an ant keeper/myrmecologist does not mean you have to bring up the “how to get rid of ants” question 
I usually answer this question with what Edward O. Wilson said he always answered.
"If you have ants in your kitchen- first, make your food stores more secure. Second, be happy. Learn about them. Which species is it? Watch them, learn from them, see where their nest is, and maybe offer them food on the porch, because ants are, like humans, lazy and will not take a hike into the kitchen, when there is food on the porch. Also, ants do not (with very few exceptions) transmit diseases, like other pests do (since ants have a metapleural gland that produces antibiotics)."
I also said exactly this at the end of my lecture during the questions from the audience (of course this question was asked, it always is).
Usually, if you present ants in an enthusiastic and approachable way, then people are actually interested and start to question if their view of ants could be changed.
My favorite ice-breaker is the picture of my ants using the toilet.
Yes, ants have an area where they go to the loo, and I offer them a little plastic cap in their enclosure where they "go".
My ants do their toilet in the mornings, and yes, they even queue up to be able to go.
I usually connect this to a little joke that this is like with humans, because, all the ants are of course girls.
It is amazing how this story does the trick in making humans more favorable towards ants and listening to information about ants.