Law: It’s natural for business to try and influence government. And when they try to buy favors and bribe members of government; That’s called “Corruption”.
But when Government induces and bribes Business to join in its plans, then you have “Fascism”.
Example, when Facebook promised its user it would never sell their personal data in 2009, that was a contract. Then when Obama’s government asked Facebook to give (sell) that information to them, fascism occurred, not breach of contract.
So, the difference between Corruption and Fascism is in defining who the moving party is.