A company without a strong internal culture of innovation could have never delivered so many great products, throughout so many decades.
They could because the tech was evolving fast enough and community (specially hacking community) was standing behind it.
Again, being sucessfull is unrelated to internal culture.
You claim internal culture, and then talk about the success of their products, I fail to see any connection here.
One of the biggest companies in the world Blackrock, has the worst culture of any company in any industry, and I could go on for a million other companies.
EA is huge and sucessfull, awfull culture.
Boeing also a huge company, one of the worst internal cultures ever, from killing whistleblowers to SA scandals.
Now, as I said, I wouldnt say Intel has an awfull culture, they just have no culture at all, they never did.