The question will become more difficult when people who are essential to the success of a company or product become entangled in allegations (and perhaps eventual convictions). But let's forget the high bar of convictions, for a moment.
If we soon begin to embroil anyone and everyone who may have said something inappropriate or who had someone interpret something as inappropriate, we'll end up including people who are _essential_ to a company or companies.
When that time comes, I think companies and society will have to reach a consensus on how to deal with borderline cases (things uncouth but not illegal). Will society ostracize and black ball all cases, or pursue ways to rehabilitate people --like they rehabilitate drunk drivers, etc.
Else, a less discerning competitor could scoop up problematic talent.