There should be funding bodies for projects like this who can fund projects and also provide a semblance of orchestration. The Linux Foundation (with the Core Infrastructure Initiative) and the Cloud Native Compute Foundation are already working in the right direction, imo.
There are other organizations that work through contracting work to develop free and open source software. Red Hat and Canonical are obvious ones. But there's also smaller outfits like Continuum Analytics, Igalia, The SQlite Consortium.
Further, there are loads of technology incubators and VCs who would do well to fund projects like Octave to make sure their Data Science startups can rely on these tools.
> Blockchains?
I'm scared to ask what you mean by this.