2- Lines of code doesn't necessarily dictate the value a developer brings to the table as there are many things that developers contribute towards- research, testing, troubleshooting, documentation that isn't gauged in the infographic above. This being said Pieter Wuille and Greg Maxwell have clearly contributed the most in all categories these last couple years.
3-- One should acknowledge the many different competing but rarely used implementations libbitcoin, Bitcoin Unlimited, XT, Bitcoin Classic, Bitcore, and more that make user choice with a diversity of implementations available. Core currently has most of the talent thus it would be great if other implementations found methods of encouraging and paying for other repos.
4-- Core isn't a unified project , but a diverse group of developers with many different backgrounds, opinions, and funding sources. No one group controls Core and anyone can choose to contribute and support this open source project.
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