Earlier quoted context omitted.
That's strawman, IG Farben was a company in Nazi Germany, which had different laws and different rights. If you want a better example, yes, Haliburton, GSK, and Koch, all have the right to lobby in their best interests (at least in the US).
...And Enron, and Goldman, and all of the companies that tanked us in 2008. Right? Where is this right spelled out exactly, except in the fiction that corporations are people without the responsibilities?
Lobbying is speech. You can't just censor people you disagree with. That's not the basis of our democratic society. The price of being able to speak what you think is good, is having to hear what you think is bad.