I like what jbaldy wrote. One should follow the custom, minhagim of the K’hilah one belongs to. If the Rav, Rosh Yeshiva, Rebbe says to drink then one must do so, as one follows all the directives of the Gadol. Personal feelings, gemutlichkeit do not play a role. Of course one must always know there is a Ribono Shel Olam, and NEVER forget himself. Even when drunk. (Yes, I heard of a Gadol who demanded this in earnest from those he personally gave to drink). There is a Ribono Shel Olam, there is a Shulchan Aruch even on Purim, with all the festivities notwithstanding (hilchos mazik on Purim too). One must know why he is drinking, and in front of Whom he is drinking.
Those who follow the directives of a Godol who holds not to get drunk, may not do so – to do it would be plain frivolousness shelo lshem mitzvah.