Should we change ourselves, or change the system?

There are lots of advice on how to survive as an underrepresented minority in the tech industry, and I have adopted a few myself: delete "I think" from my emails, interrupt at meetings to get heard etc. While I have advanced my own career as a result, I wonder if I am doing a disservice by perpetuating the broken system. How do we balance playing the system for survival and changing the system itself?