Unless the increase is infinite, it is still possible for the loss in utility from high variance to outweigh the gain in utility from increased productivity.
This only works if the main contribution to utility from working consists of the personal fulfillment of the worker rather than the benefits generated by the work.
This only works if the main contribution to utility from working consists of the personal fulfillment of the worker rather than the benefits generated by the work.
Only in the sense that any measure of utility that involves the condition of a person consists of their personal fulfillment.