Why does More present the traveler as a sensible reformer early in Book I, but not later? According to Wikipedia “Sir Thomas More, venerated in the Catholic Church as Saint Thomas More, was an English lawyer, judge, social philosopher, author, statesman, and noted Renaissance humanist. He also served Henry VIII as Lord High Chancellor of England from October 1529 to May 1532. He wrote Utopia, published in 1516, which describes the political system of an imaginary island state.” 

According to Wikipedia “Utopia is a work of fiction and socio-political satire by Thomas More (1478–1535), written in Latin and published in 1516. The book is a frame narrative primarily depicting a fictional island society and its religious, social and political customs.” A Utopia is basically a place where everything is perfect. 

This book is about a traveler interested in a perfect world. Where the punishment fits the crime.  If thieves had a job they would have no need to steal. There is only deprivation, no sin. Utopia is a place where there is no money. Jewels, gold, silver. coins, none of it would mean anything. Everyone has everything that they need. Everyone has a job so there are no beggars. There is no fashion. Everything is free because there is no money. No one would even need to steal because they already have everything they need. There is a limited amount of families in a city and a limited amount of people in a family. 

Why does More present the traveler as a sensible reformer early in Book I, but not later? The ideas in this book would not be accepted at first. The author begins with believable ideas at first then brings in more unbelievable ideas.