It's not even justify their salary. A lawyer's sole job is to advocate for the legal position of their client as zealously as possible. A really good chief counsel would go to the CEO and weigh up the merits of the marketing win of "losing" this case. A drone lawyer just files whatever is necessary (or even unnecessary) to fight the case even when it makes zero god damn sense. e.g. giving a person a 25 year prison sentence for stealing a slice of pizza.