1. Sorry if I was unclear -- the examples I listed were meant to be examples of "general intelligences", but I think corporations are a good example.
2. Well, this is somewhat more complicated to answer --
Obviously the reasoning abilities are (partly) because we're part of the structure. But in a way that we know can be decoupled from the reasoning ability of the structure -- see modern CS on which problems are tractable to mechanize and the success of ML at individual tasks -- because modern corporate theory has formulated a system of corporate governance and execution that only depends on individual people for one or a few tasks. The fixation of modern corporate management on replaceable, cheap, low-skill workers makes it a perfect template to replace components one at a time with bruteforce discovered ML components (and in fact, we already see this happening -- because it is part of the reason that corporations are designed that way).
After all, from the perspective of the corporation as a reasoning entity, increased cyberization is increased efficiency, which ultimately means increased competitiveness (and hence survival).
Electronic computers were designed to replace human computers in the military, and we have a wealth of information on their numeric and string processing capabilities. They're specifically designed to emulate in another medium some of humans' reasoning abilities, particularly those around logical deduction and numeric calculation (which in some senses are similar). Since modern corporations have reduced much of their operation to machines (eg, factories), string manipulation and calculation, it seems perfectly conceivable to have a corporation control all of its "core functions" via electronic computer after a period of increasing cyberization, with contracted delivery services and on-site technicians viewed something like a doctor.
Corporate cyberization is, if you take my first claim that corporations represent a "general" reasoning structure of made of specialized components as true, an open and direct path to an AGI that we seem to be stumbling down.