When I was hospital nursing, I progressed to being a ward sister for about 2 years, but when I entered the field in which I remained until I retired, I was initially a continence advisor (i.e. a clinical, not a managerial role). Rather than enter management, I advanced within my clinical role. When I retired, I was an advanced practitioner (i.e. a nurse practitioner) for bladder and bowel health. I think this suited me (as an individual) much better than management would ever have done, and also allowed me to enter research.
So, I feel it depends whether the individual has skills and ambition appropriate for management, or if the clinical route would be more suitable.
Management is part of our life. Successful people are good managers. Mismanagement leads to failure at both individual and government levels. To get a professional degree/certificate in management is great, but, as I mentioned earlier, it is up to people's (nurses') choices/preferences, abilities and opportunities.