What is the contemporary relevance of Marx’s view of ideology and/or his critique of capitalism?

What is the contemporary relevance of Marx’s view of ideology and/or his critique of capitalism?

300 words allowed for bibliography. No US sources this is for UK uni please. Harverd source of referencing

Referencing Requirements:

Reading 3. V.I. Lenin, “The three sources and three component parts of Marxism”, from Marx/Engels:

selected works, London, Lawrence and Wishart, 1968, pp. 23-27

Reading 4. K. Marx and F. Engels, from The Communist Manifesto, from J. Elster, ed., Karl Marx: a

reader, Cambridge, Cambridge UP, 1986, pp. 225-235

Wolf, J. Why Read Marx Today? 1993 B3305.M74 WOL

communist Manifesto

(http://www.marxists.org/archive/marx/txtindex.htm

http://www.marxists.org/)- optional