If risks are improperly assessed and prioritized, time can be wasted in dealing with risk of losses that are not likely to occur. Spending too much time assessing and managing unlikely risks can divert resources that could be used more profitably. Unlikely events do occur but if the risk is unlikely enough to occur it may be better to simply retain the risk and deal with the result if the loss does in fact occur.
Prioritizing too highly the risk management processes could keep an organization from ever completing a project or even getting started. This is especially true if other work is suspended until the risk management process is considered complete.
It is also important to keep in mind the distinction between risk and uncertainty. Risk can be measured by impacts x probability.
