Best of luck with it Maj, I think you will bring something good to the table if you make it there.
Be careful of condemning the "posh over-educated clique" types though, as it isn't education that is going to count. Whether you are a PhD or a brickies labourer, what will really count is passion for the area, and willingness to learn what is needed and to ask for help (from the right people with the right knowledge and experience at the right time) when needed. The person with the right attitude will work to get done what needs to be done. The person with the right corporate experience, or the right flying experience, won't necessarily. Give me someone with the right attitude and none of the experience any day over someone with the wrong attitude.