There is nothing wrong with working for a large firm. My friend worked for Mallesons Stephen Jaques in the Rialto Building one of the top 5 law firms in Victoria and that gave him a fast track to a lucrative career where he now earns more money than he knows what to do with. He has his own office, secretary, sports cars, 4 wheel drives, the house a few doors up from him which is not even close to as good as his just sold for $1,500,000. He and I used to travel the world together backpacking as students around the middle east but now I am still backpacking and he is staying in 5 star accomodation. It really isn't so bad.
When he compares our situations he says, "as a teacher you have the respect of society, but I am considered a parasite so I need my millions to cheer me up."