its a bit more than 0.1% but it doesnt matter. ppl use runes on progress runs, so imagine a 20 ppl having few more points into a weapon. lets assume that you have 5 more that's 1000 more intellect/str, with 20 people thats 20000 ( well less if you dont count tanks ), you wanna tell me that wouldnt matter to a guild? If you believe that then dont use pots, flasks, food or any other buff, not only you but your entire group.
And you would atm HoV +15 gives more than 20mill AP with i think 37AK, with AK40 that would be about 44mill, with AK50 that would be 600mill +, do you notice the difference? for last trait/point you will need 865,842,644,766,333 total