Well, I guess it's good that corporations have free speech protections under the First Amendment. I often see it argued here that they shouldn't.
The underlying legal principle is that groups of individuals banding together don't lose their fundamental rights. That applies to unions, non-profits, clubs, churches, political parties, small businesses, and yes, corporations.
Courts do allow more government control over "commercial speech" than, say, political speech. But that discriminates based on the type of speech, not the type of speaker.
.. but do limit their liabilities. It's not unreasonable to claim that limited liability should come with limited rights.
You and I get an email box often full to communicate with officials over
Rich people call and text them