This is really, really disappointing. Contracts are supposed to be fair for both sides. In isolation, meaning for one specific purchase or one specific job, they are. But what happens when every company and employer has this language in their contracts? What do they lose by including the language? They lose nothing!
That's not really a prerequisite for contracts. Contracts will often reflect substantial negotiating leverage on one side versus the other (e.g. a contract for sale of a house where the seller just lost his job, or a contract for sale of stock where the seller really needs money due to an unforeseen emergency). That's not a reason not to enforce them.