Investment is not inherently a bad thing, but this is certainly the case. When the owners of the company care about increased profit instead of the employees and customers (which would be aligned in a perfect world but they are not necessarily so in this one) enshittification is inevitable.

As soon as it is more profitable to lobby for legal changes that make more money at the expense odds your customers or employees—or find other ways to use your money to the same ends, you've gone to the dark side. I wish it was illegal for organizations (other than non-profits) to be involved in politics, but as a practical matter you can either allow it or accept it will happen out of view and ability to influence, like drug use.

These issues are why I'm happy being a worker bee than a queen—there's no solving people's problems when the problems almost always turn out to be the ability/drive of some of us to adapt to any system for maximum personal gain at the expense of others.