[ltfey]

I agree with what you're saying. However, I disagree on one bit:

But there, most of the people will the ability to "save the day" will usually be in upper management. The big tech companies may be an exception this: Google has their two "level 11s", and Microsoft had the massively talented team that they used to catch up to Netscape Navigator in the 90s.

The tech companies are not exceptions. You don't become a "level 11" at Google without playing political hardball. In a big company, the CEOs won't even know who you are, certainly not enough to invest in your career or give you opportunities (such as taking on Netscape in the '90s), unless you're willing to go lawful evil and collect some scalps.