You are not increasing the wattage thats the whole point. You are only increasing how bright the bulb burns, therefore whilst it does not alter the beam pattern what it does do is make the light more brighter and whiter.
I proved this by putting some masking tape lines on the garage doors with the OE bulbs fitted and switched on dip beam.
Then I swopped over the bulbs without moving the bike, no differance at all in the pattern..BUT...the light that was now there was a lot brighter. This was also highlighted when I went out yesterday afternoon when several car drivers flashed me about my lights
I agree that there is no subsitute for additional lighting but for a small fee why not take advantage of what you already have fitted and improve on it?
Thats my take anyway?
Alan