Bitcoin's development budget

What is the development budget for TCPIP? Ethernet? it's not zero. Companies around the world pay employees to participate in maintaining the code that implements these protocols. They also pay people to participate in standards committees to make changes around the edges of these protocols, though not to change their fundamental behavior. If these Internet protocols were more complex the development budget would have to be correspondingly larger and might not be enough to rapidly adapt the protocol to new situations. Current internet protocols initially beat out more centralized, complex and (arguably) featureful protocols partially because of their simplicity. I'm happy to see industries supporting Bitcoin development and there is a huge unmet need for more full time support, but keeping the code and protocol simple is a way to prevent reliance on these funding sources and from centralized funding sources controlling the protocol.