The wage is the smallest number in the calculation and the only one most owners run. The rest of it decides whether the hire works or quietly drains the year.
Most families use all four and rarely decide the proportions on purpose. The order they are drawn on changes the total cost of the degree considerably.
Somebody collecting three quotes cannot assess the work itself. They can only assess the paperwork, which means the document is doing more selling than the price.
Legal work is priced three ways, and the structure you are quoted says what kind of problem the attorney believes you have. That is useful information by itself.
A big customer's contract is written to protect the big customer, which is normal. Most of it is negotiable, and knowing which parts to push on is the whole skill.