Marx Vs. Althusser

In my personal opinion I side more with Althusser than I do with Marx. This is because in my interpretation Marx believed that the only thing that is relevant in life is materialism. Whereas Althusser takes a step back and says yeah materialism is important, but so is ideology. That was said in simplest terms possible, however the remarks that Althusser makes about ideology affecting and altering life brings a whole new perspective into Marx’s argument. So basically Althusser took Marx’s base, and added on something that he saw that Marx did not initially realize. My real interest lies in how Marx would respond to Althusser new idea. Would he reject it all together or would he embrace the second look and even go off of it? Althusser’s claim that ISA’s today is school, I believe is quite relevant. I think that schools tend to focus on development of the mind. However, not in a creative way, but rather in a matter of fact and quite structured way. In my opinion school is an ideal example for an ISA.