FFS: in Ye Olde times, most people rarely went further than the next village, strangers were viewed with great suspicion and only a complete idiot would suggest that there was anything remotely comparable in today's society in terms of global, national and international information sharing.
And even if these mysterious leaflet-toting strangers roaming around the countryside survived the commonplace attacks, their pamphlets wouldn't be much use as vast sections of the population could neither read nor write.
And, of course, those who could read and write were usually those already in power - and were thus able to control and manipulate information.
(Hold on - haven't I already pointed this out?)