I am not quite sure what those "occupiers" are up to, but AFAIRemember there were slogans against evil financial corporations (i.e. Wall Street) rather then against companies of real sector. So, let us don't mix up everything. Financial corporations produce nothing, they only trade money for money and they are richest: absolute majority of richest companies are pure financial. And they can crash real sector as crisis shown: unsuccessful trading virtual money for virtual money can kill real economy. Financiers don't force you to loan money but if you don't, one day you can find that without credit history you are considered unreliable person and can not, for example, rent a car.In fact, your rights and possibilities become limited.
Aren't those reasons enough for some protests?