It's not what your wattage is but when and how it's applied. Understand the Ewangeroo charts are data points of the best numbers people have put up who race certain categories. This is like looking at the heavily airbrushed nudes of Belinda Carlisle from that 2001 Playboy. Not only are you only getting a partial picture of what she looked like then, it's not really relevant to your stalking now.
Pretty numbers don't always add up to pretty results.