Well if you blame Howard for the greed that has ignited the stock market over the last say five years then you must also blame Hawke/Keating for the market crash in '87. Maybe we should blame the Reserve Bank for that crash for allowing the 'easy money' to be so readily available, as it did in '87. I seem to recollect that Keating stated he had the Reserve Bank governor 'in his pocket'.
I don't blame any polly, it's just human nature to be greedy!