[pdkl95]

> Giving a speech doesn't mean you're ... influenced by default.

No, but taking a large amount of money does. Even if you believe you aren't taking money for a "bribe" and maintain some level of independence in the actual content of your speech, there is a significant unconscious bias. If you want to get that kind of job again, you might not be as critical of the people paying you.

> The core question is whether the money will influence her policies.

Approach the question from the other side. No for-profit business is going to give large sums of money out without some expectation of a return on that investment. Someone is betting that they will be able to get more money having the ear of a politician than their other investment opportunities.