Let's put it a different way: would you work for a rapist or a sexual harrasser? Would you condone it? That's what these women chose to do. And they were more certain of this fact than anyone else.
I wouldn't work for a rapist or sexual harasser, but I know plenty of people who care more about their careers and they probably would. That doesn't justify raping or sexually harassing them. And even if they tried to mitigate the damage to their careers by playing along with the abuse, that would still not justify or mitigate the abuse.
1) Lying to a lover. 2) Lying to a boss. 3) Covering up a boss's misbehavior. 4) Doing all of this for money.
Somehow you seem to think that Weinstein's behavior makes it all acceptable to do these things. Really?
And if it was known throughout Hollywood that he was terrible, well, why did they women take the job in the first place? They certainly should have known, right?
Harvey Weinstein has no agency in your version. He's not a sex addict narcissist who uses his power to make or break movie careers to manipulate and abuse and rape women. He's just a "lover" and "boss" whose greedy, ambitious, slutty employees are out to seduce him.
The ethical thing to do is not to rape your subordinates. If they choose to persist in their chosen profession despite rape or sexual harassment, that in no way diminishes the severity of the rape and sexual harassment.