Actually in games usually poorly balanced characters do the best, i.e. adding all your points to strength. Might be true in life as well, especially with hyper-specialization being the only way to stand out in a super competitive landscape.
In a computer simulation or with a bad DM, you can get away with CHA=1 / INT=1 / CON=1 etc due to the limits of the simulation, but life tends to have rather harsh consequences for the MIN aspect of MIN/MAX.