Most sports played professionally also have amateur players far outnumbering the professionals. Professional athleticism is seen by some as a contradiction of the central ethos of sport, competition performed for its own sake and pure enjoyment, rather than as a means of earning a living. Consequently, many organizations and commentators have resisted the growth of professional athleticism, saying that it has impeded the development of sport. For example, rugby union was for many years a part-time sport engaged in by amateurs, and English cricket has allegedly suffered in quality because of a "non-professional" approach.