Donating to a charity, then bragging about it, kinda takes all the virtue out of it. Like you did it to look good, not really for the cause. Lifting yourself, rather than those who need raised up.
Ive actually debated this in my mind a bit. I personally try not to speak about charity i do but I can understand speaking about it with the intentions of encouraging others to also follow suit. In this case, i actually believe Will to be a decent man just trying to help.
Seems like the Christian perspective is to not boast but to just do and be the light of the world.