People are sincerely hopeless
People are sincerely poor
People are sincerely suffering
People are sincerely begging
The problem is , sincerity is not an independent variable,it is a dependent one and if all you have is sincerity,you will be abused, taken for granted or even killed.
Sincerity is not a factor of production .
Land, capital , labour, Entrepreneur ,there is no sincerity there.
The point is ,if all you have is sincerity,make sure the variables are in your favour.