I am confident that disciplined social behaviour can control and manage the virus.
Eric, I agree that disciplined social behaviour can control the spread of the virus but I don't see any evidence that people are capable of such on any large scale. Thus the virus will continue to spread and we will have to learn to live with it like we do with other contagious diseases such as the flu. The cost will be huge in higher expenses for the health care system and loss of productivity.
A vaccine, if and when it comes, will only improve a bad situation but will not solve all the problems. Everyone (rich and poor) will suffer a lower standard of living both financially and qualitatively.