That's a huge part of the investment behind Bitcoin's Blockstream. Blockstream pays more more development hours then any other entity by far. There's no direct

That's a huge part of the investment behind Bitcoin's Blockstream. Blockstream pays more more development hours then any other entity by far. There's no direct revenue to be had by improving bitcoin-core. But without that development we'd be stuck with less security, less features, and a blockchain that took weeks or months to download and verify (instead of days). Bitcoin is only possible because of the massive amount of development going into this unprofitable codebase. And I believe that Blockstream's investors are well aware that they will never have direct ROI on many of those upgrades.