Why is walking two blocks at night still unsafe in Camps Bay?

Had dinner in Camps Bay tonight and finished around 10pm. As I was leaving, my waiter strongly advised me not to walk the two blocks up the hill to my hotel: “It’s not safe, please take an Uber.”

I’m not naive about Cape Town or South Africa. I’m aware of the broader socio-economic context, the private security ecosystem, and the City Improvement District model. My question here is more targeted and practical:

How is it that one of the wealthiest, most high-profile neighbourhoods in Africa, with a CID, private patrols, tourism revenue, and extremely high property values … still can’t deliver the very basic experience of “you can safely walk two blocks at night”?

I’m not asking “why is there crime in SA?” I’m asking: what specifically prevents this neighbourhood, with all its resources and incentives, from crossing that threshold?

Curious how residents and long-time locals think about this.