Hydro power, for much the same organisational, political, and disaster response reasons as nuclear, which is to say, non-technical reasons, can be exceedingly risky.

But once the immediate hazard is resolved, over the course of months to years, the region returns to normal.

The immediate innundation from Banqiao was responsible for ~25k deaths. The additional 100k or so came from starvation and disease due to widespread disruption of the region, and a grossly inadequate disaster response plan and capability.

Organisational / institutional failures at Chernobyl, Fukushima, and for that matter, Hanford and Sellafield, were and are massive contributing factors. You cannot engineer around those.