How do you plan on making the money to travel & "educate" people? Stick to being a vet, you can make a much larger difference. I know plenty of rescues that would LOVE to get free (or even discounted!) vet services, and therefore they would be able to rescue more horses.
I know there are horses suffering in other countries, but you should start with your OWN country! There are plenty of horses to rescue here, too!
A lot of people groups have traditions & even religions that they are taught to do certain things like bleeding out horses, or cutting off ears (I've seen it on the news, don't remember which country/religion). So good luck changing a culture that is thousands of years old. On the bright side, there are more horses in the US then there are in smaller countries like Turkey or those middle east countries that are known for their uh, different ways of life.
So stop ranting on the HF where we all love horses and hate cruelty, and make your own web sites/organizations to stop cruelty. Too much talk, not enough action.
Every great dream begins with a dreamer. Always remember, you have within you the strength, the patience, and the passion to reach for the stars to change the world. ~Harriet Tubman