> Both Intel and Google prioritize {starting something new} over {growing an existing thing}, in terms of corporate promotions and rewards, and therefore employees and leaders self-optimize to produce the repeated behavior you see.

I cannot speak for Intel, but Google has done very well by "growing an existing thing" in AdWords and YouTube. Both account for the lion's share of profits. They are absolute revenue giants. Many have tried, and failed to chip away at that lead, but Google has managed to adapt over and over again.