Water and food are the absolute essentials to life. If meta came up with a new product, you can ignore it, but you cannot ignore water scarcity.
Most nations are beginning to deal with intense water pressure issues. Especially as seasons don't follow the patterns so perfectly. A flash drought could cripple almost all water and excessive underground water pumping sinks the land. See china's issue with random potholes due since the land is sinking.
Modern water desalination is quite new, so technology has much room to grow. Not only does that make it attractive in terms of patents for better systems, but also there's always a market.
I think we've got another one at Alkimos that supplies another 15% or so right? I think we are projected to have the majority of our drinking water come from desal over the next few decades.
Desal is cheap as chips compared to Water Corp's supply charge!
And it’s a pretty recent thing too since we realised we couldn’t just blindly drain the underground water and the rain had become insufficient for our long term population growth predictions.