None of those are "leftist".
Staff support is entirely different than institutional corporate support. Is Amazon leftist because one of its warehouses just unionized? No, it fought (and is fighting) that union effort tooth and nail. Similarly, Google has punished staff who were too open with their leftist beliefs.
Nor is support for the Democratic party "leftist". The Democratic party is split between neoliberals (who would be considered right of center anywhere else) and social democrats (who would be considered center left anywhere else) for the most part (with some rare Democratic Socialists who might actually qualify as leftist).
Hillary Clinton is a prime example of this. Anywhere but the United States, she would be considered solidly center right. It is only in the United States, where Fox News, et al have dragged the spectrum so far to the right that anything less than neo-fascist or anarcho-capitalist is considered left, where you could even pretend these corporations had a less than rightward slant.
Edit: I will note, this dragging of the spectrum is one of many, many reasons why I try to avoid spectrum based labels (left/right, etc) and stick to actual ideological labels. There is no single "leftist". There are Democratic Socialists, State Socialists, Communists, various flavors of Anarchist, etc who all get grouped together as "leftist", but generally don't agree on much. The other group of ideologies that get grouped with leftist are those supporting historically oppressed minorities - antiracism, antipatriarchy, and pro-lgbtq+ rights. Again, these are discrete ideologies and while people who subscribe to one often subscribe to the others, just as often they don't.
Similarly on the right, neo-facist, neoconservative, paleoconservative, evangelical theocrat, and anarcho-capitalist (the proper term for US libertarians) all get grouped together under the heading "right". When many of these ideologies are (or should be) completely at odds with each other.
[3840x2160px jpg of Shannon Bream] https://gn-imgx.fubo.tv/assets/p14696422_i_h8_ae.jpg
[1080x1080px jpg of Shannon Bream] https://i.pinimg.com/originals/f4/65/08/f46508d597bef8ddb558...
/me crawling back into his hide, making fox noises ;->
I agree with you that the core of this is money in politics leads to money having too much influence with politics. On the supreme court, I think that republican federalism has control over the court, that's the clear place where the 'ideology' of dems would lead to different results. But this isn't a secret, the parties encompass multitudes of views, because we squish all views into two fairly narrow groups with our accidentally designed for two-parties political system.
There are people who are trying to bridge that divide. I recommend Breaking Points and the whole ecosystem they're trying to build around themselves.