Ultimately, the ideology of not having an ideology, or centrism, favors the status quo, which is not a great way of creating the change you want to see in the world. You will always take actions depending on the results you want. Ideology serves as a way of understanding the change you want to see, and which actions are the most useful and powerful to take. Ideology can also serve as a way of finding likeminded people, promoting your ideals and organizing.

Also, it's funny how you blame socialists for society not being able to fix the problems of capitalism.