I'm lower-left quadrant but always cop a fair amount of shit from others on 'the left' (nebulous term though it is) for my feelings on capitalism. The people I speak to have never seen anything but corruption, and have a combo of zero faith and utter hatred for it.
My personal feelings are that with strong, enforced checks & balances, capitalism can be combined with socialist policies to create a fantastic standard of living (see Norway), without it becoming cancerous. Unfortunately most of our western political systems (and capitalism is strongly influenced by political systems) seem to be run on a wink and a nudge, an assumed sense of 'fair play' which we all know has been shown to be worthless in recent years.
Strong unions; an educated populace; politicians who actually give a shit; this is what we need. But, capitalism has an absolute stranglehold on the populace of most western countries via print / tv media. The foxes are in charge of the henhouse and the hens are getting shit on.