In former times doctors in Taiwan, who were considered saviors, were greatly admired. This is not only because they were able to relieve sick people of their pain and save their lives, but because they demonstrated admirable willingness to help the sick. Now in this industrialized world people are inclined to choose material possessions. This is true of doctors, too. The high income of doctors is the envy of other people. Many high school graduates are eager to get into medical colleges, and countless girls consider doctors to be their best choice of husbands. For many years the public has charged that doctors in public hospitals demand money from patients. The amount of money the patients give determines the kind of treatment they receive. It has also been said that drug companies have to pay the doctors so that the latter will use their products. Recently a large medicine factory set up by the U.S. Investors declared that it will stop giving 'kickbacks' to doctors as the factory bas spent too much to promote sales over the years. This declaration has caused quite a stir in our society. We wonder what the officials who have denied the dealings mentioned above will say about this. According to the passage why did the doctors in Taiwan deserve our highest admiration in former times? ______.