The dictionary definition of "affiliated" may be narrower than you think. It only covers companies who are related by ownership. It does not cover persons who have some interest in common. As will become apparent, the thing affiliates have in common is that someone is in control. If the accused person was not controlling the person who caused the injury, whether directly or indirectly, or at least under the common control of a person who controlled the bad actor, directly or indirectly, then that accused person was probably not an affiliate.
The Court of Appeal for San Jose has held that borrowers could sue the lender and the buyer at a foreclosure sale to have the loan held to be unenforceable, where the loan required payments $1000.00 per month higher than the borrowers' monthly income. That the contract costs more than a party can afford, is a new legal defense. It could be applied to automobile loans and leases, real estate and home purchase contracts, landlord-tenant rents, and even the high interest rates and fees on payday loans and credit cards. We read in the media, complaints by tenants advocates about rent increases which raise the rent to amounts the tenants cannot afford, as a defense and opposition to market rate rents. Here is a judicial decision supporting that as a legal defense.