I think your definition of culture is not accurate as well.
A company can be successful and have an awful internal culture, and theres millions of examples of this (specially in the gaming industry for example).
In Intels case, check what the exemployees are saying, maybe you'll be surprised.
Not that it matters, the company has very little upside potential for the foreseeable future, and this could be fixed if they focused more on their culture and employee wellbeing, specially when other companies in the sector (nvidia, amd for example) offer much more in this sense.