For one, the person you were replying to isn't the CEO. A more accurate analogy might be drawing ethical conclusions about the accountant in the company that built the road that led to the accident (or one at the beer company or a weapons company if we want to be spicier)
And the other thing is your drunk driver analogy has a big serendipity aspect to it. The change of tune at Uber was very deliberate in response to the reputational damage its earlier iteration inflicted on itself. A more useful thought experiment might be one about an ex-con gangster turned community service volunteer.
I agree reprehensible occasions remain reprehensible no matter what, what I don't agree with is the notion of immutable morality (X person is always as moral as they were previously), ascribing morality of amorphous groups to individuals, and various other cognitive biases I see people committing in threads like this.