There's nothing wrong with getting angry. The Jews were imposing a class system in the name of God. Dependent on your physical health, sex, class and wealth you got to get closer to God
(You've heard of the concentric divisions of the temple of Jerusalem.. the paupers gate, gentile gate, beautiful (women's) gate, jewish gate, court of priests, and finally the holy of holies.. you had to pay in temple money which you exchanged real money to pay for sanctified animals to sacrifice to God who was thought to occupy the holy of holies at the centre of the temple who only 1 priest got to visit once a year.)
So you see he was delivering a death blow to exactly those things you stated.
(You've heard of the concentric divisions of the temple of Jerusalem.. the paupers gate, gentile gate, beautiful (women's) gate, jewish gate, court of priests, and finally the holy of holies.. you had to pay in temple money which you exchanged real money to pay for sanctified animals to sacrifice to God who was thought to occupy the holy of holies at the centre of the temple who only 1 priest got to visit once a year.)
So you see he was delivering a death blow to exactly those things you stated.