What do you think will benefit it?
A promotion from the president. lol to that. ;-) It can't really help because president won't allow it to do in first place. That's because they will never want the national economy look like stupid. There are many reasons behind that. Anyway we can try out mouth to mouth publicity by talking with friends, family and other people around. :-)
Proper advertisement will benefit bitcoin more as compare to anything and investor should also spread its information among their circle so that people will be more attracted and top of this social media campaigns must be started so that this coin can meet to all the corner of the world this will bring a lot of investor and as result this will bring more profit to everyone so everyone should do his part for progress,
You are right that advertising about bit coin is the best way for popularity of bit coin which indirectly increases the interest of investors and finally the value of bit coin increases now days in this modern age the advertisement may be arranged through mass media, print media and social media etc.