I was impressed with Vint Cerf when I saw him at a distance but once I had dealings with him about issues such as: the way the internet has become a pernicious influence, how the ACM is an industry group for computer science professors that doesn't support practitioners [1], the ACM's support for H-1B visas [2] I came to the conclusion that this quote is about him:

   “It is difficult to get a man to understand something, when his salary depends on 
    his not understanding it.”
    
    ― Upton Sinclair, I, Candidate for Governor: And How I Got Licked 

[1] open access journals were a big step forward, but I was open access decades before

[2] i'll join a club which is neutral on the issue, but I can't accept the positive position, not because I feel it threatens me but because it pains me to see a brilliant data scientist being jerked around (bad enough that the HR lady leaves) and not being able to tell him "your skills are in demand and you can find another employer on the other side of the street" (this is NYC) And the argument that "startups" need it is bogus: Google can take a chance on a lottery, a key employee at a startup is key however.