a B Ec doesn't guarantee u to be an economist (unless you have a single major os just economics then ur doomed...!jk)... it usually gets u into managerial positions and something else that i forgot. the degree is really useful because the world is an economy, and wel... u can make sense of that. You'd most likely work in a bank, some corp, and government departments.
apparently to be an economist, you should do some further study such as honours or masters as it's a highly competitive market, with (relatively) low demand.