FMEA is a great methodology to address the risk, what I can guess that is missing from your question is actions to address risks. After you calculate RPN, if it is too high you have to take actions to address those risks. The same goes for corporate risk assessment.
What is also missing if you are usin g FMEA and corporate risk, is assessment and actions to address opportunities. You can use benefit-effort matrix or similar so you can assess opportunities your business has.