Gould was the major stock holder & he liked Ali, because he said all the right things to him.
Jack Tramiel wasn't the nicest person, but he had a vision and managed to screw people to achieve it. I don't think that Gould ever appreciated how much he needed Jack, money from the c64 was rolling in and he could afford to pay for some yes men to massage his ego.
The problem with stock holders is that all they have brought to the table is money, they don't necessarily know if someone is doing a good job or not.
In fact, when the bodily excrements really made contact with the air circulation device, Commodore had moved the company to the Bahamas. Mainly for taxation reasons, I guess, but it was also an efficient way to stop shareholders attending any kind of election. IIRC a small group of shareholders raised money for one person to go there and voice their complaints, which was of course ignored.
Also, the downfall went fast and not all of it is to blame on Gould/Ali. In 1992 things might have looked bleak but Amiga was still the leading games/home computer (in Europe at least). Buying a PC was not only seen as weird but rather downright irresponsible - they were too expensive. Then in 1993, Doom came along and changed everything. By 1994, PCs were so cheap and powerful that custom hardware simply couldn't compete. Not only C= but also Atari went bust. By 1995, my friends had at least 66 MHz 486 boxes while I bought a 28 Mhz 030 card for my A1200 which cost more than the computer itself. Except for Apple (arguably - they have made the switch to X86 and what really turned their luck was the iPod), there hasn't been a single successful maker of "custom hardware" home computers since the mid-1990s.
Still. With better marketing and sounder R'n'D desicions, the classic Amiga as we know it might have lasted a few years longer as a fringe element for the already initiated. But then again, it kind of did anyway. If it would have been around today, it would probably be kind of like a Mac or Linux box: A PC with another OS (Much like the AmigaOne actually is).