Joe Calzaghe has a net worth of $21 million. He was undefeated throughout a 46-fight career at super-middleweight and light-heavyweight. He retired in 2009 and is involved in boxing promotion. Calzaghe has homes in Chelsea and Wales, and a villa in Barbados.
On the other hand, a hospital is a 24 hour health center where patients get admitted for treatment of various diseases. There will be several doctors attending upon the patients in a hospital. Another important difference between a clinic and hospital is that a clinic normally does not have beds meant for patients.
Doctor vs Nurse. There has always been a huge difference between a nurse and a doctor. As you might have witnessed yourself, a doctor is the one who does the operations while the nurse is the one who assists him. Hence, what might really be the difference is what they have studied, which is why they reached such professions.