[sjwright]

Your response proves my point. As you are someone who knows that that an accountant saves you enough in taxes to justify the expense, you are a person who has time or resources to strategise their interactions with the tax system.

Many people don't have the luxury of strategising any of their interactions with the tax system. Either because their situation isn't covered by any deductions, or because they don't posses the knowledge, or because they don't possess sufficient free time to investigate.