The treasure fleet voyages cost Ming China vast amounts of
money and brought nil returns since they were not trade excursions but only
brought back exotic novelties. As a result, the government recovered little of
the cost. Moreover, China was self-sufficient and did not need anything from
the Indian Ocean countries
Generally speaking, a civilization whose impact can be felt on history for a very long time can be called a "lasting civilization", since the things they put into effect have "lasted" throughout the years.
