sorry to hear about the refusal
one of the main reasons for refusal is over drawn bank statements.
did you mention you had debts of £12K ?
your allowed recourse to public funds but your wife is not, thats the problem
and its not what you earn that counts its what you have left each month, but sure the more you earn the better it is.
did you do a budget for example on a spreadsheet showing all your incomings and out goings ? like terpe said, as a guide you need about £160 a week after paying rent/poll tax.
its not really the ECOs fault they have guide linesif it was one statement overdrawn you probably would have got away with it..
if you have further evidence, a copy of the medical bill, explaining this is why your overdrawn and a budget showing you will have at least £160wk then you could send this to the british embassy in Manila and ask for a reconsideration/review and it might not go to appeal, but dont forget you have 28 days to appeal.