The ruling class who hold RSAs can also easily decree ISAs. RSA belongs to the public domain whereas the ISA belongs to the private. Ideology is conceived as pure illusion, and all its reality is external to it. Ideology is a structural and must be studied synchronically. F. Interpellation-the trick that makes humans to see themselves as entity free.
Ideology has the function of constituting individual as subjects.
There is an ideological effect that make human recognize themselves as subjects. Work Cited Althusser, Louis. New Left Books, 1977.