content is what is important. technical content and content of character.

    "I have a dream that my four little children will one day 
    live in a nation where they will not be judged by the 
    color of their skin, but by the content of their 
    character."

How about running conferences on a completely blind process where the identity about the potential speakers are obscured by hashing, and people instead choose which speakers will present based on abstracts of the topic they will present on and some indication that they are qualified/knowledgeable to speak on the topic.

The best solution for inclusion is by eliminating the privilege through a blind process.