The AMA gave Bradley limited resources for mission work, forcing him to focus on making money. Bradley worked as a doctor and also as a merchant to support his mission. Bradley was regarded as an unofficial American consul. He was disappointed at the lack of Christian converts his mission produced. Bradley pointed out many flaws with both the missionaries and the local Thai people. In Bradley's view, the missionaries did not keep the Sabbath strictly enough and requested medical leave far too quickly. Bradley criticized Buddhism and numerous practices that he saw in Thai culture such as drunkenness, slavery, gambling, and polygamy. Bradley, along with many other missionaries, viewed Western culture as superior to that of Thailand. At the time of his death, Bradley's evangelistic work had directly contributed to the conversion of only one person.