Does the class system work against us?

I take it we are all familiar with the class system here and how it works. Does it work against us though in a way? The Us vs Them scenario that we create divides us into two groups essentially along economic lines. Those who do not have the money and those who do not. Can we not change this? Instead of creating a society drawn along humans lines we create a society based on the needs of humans as per the Human Scale of Development (http://en.wikipedia.org/wiki/Fundamental_human_needs). Class strucuralism as described by Marx etc can be applied in a modern context but its a little too rigid so perhaps we need a new socialist movement based on the intentions of the original structure as described by Marx and re-empower the proleteriat?