all that matters...

‘What does it matter?’ ‘That’s all that matters’ ‘No matter what…’ ‘as a matter of fact’ hey, waitaminit, what’s the matter with ‘matter’? Why doesn’t anyone say ‘what does it energy?'? One would assume, quite naturally, that when matter and energy are considered quite equally important by well known, eminent physicians (names haven’t been mentioned not because of promised anonymity but because I can’t recall their names), why ‘matter’, well, matters so much? Much as I like to answer my own contrived questions, I’d love to hear some answers that don’t come from my own grey(ing) matter… any takers?