It seems to me that on these sorts of issues the church doesn't tend to care too much about scripture, but rather rely completely on how it was interpreted by later prophets.
The WoW is a great example. I recently read a book in which Mormons were cited as having one of the highest levels of meat consumption in the world, and were therefore useful in the testing of hypotheses related to meat-consumption. That they are specifically told to avoid meat except in times of famine doesn't matter, because that part was edited out of the WoW by later prophets. Similarly, JS's original wording of the tithing commandment probably doesn't matter much.
The WoW is a great example. I recently read a book in which Mormons were cited as having one of the highest levels of meat consumption in the world, and were therefore useful in the testing of hypotheses related to meat-consumption. That they are specifically told to avoid meat except in times of famine doesn't matter, because that part was edited out of the WoW by later prophets. Similarly, JS's original wording of the tithing commandment probably doesn't matter much.
. But if the church ran on a shoestring budget, I would be more comfortable with the teaching that the faithful paying of tithing supercedes all other budgeting. As it stands, I won't be teaching my children that you should potentially harm your credit rating by paying 10% of your gross income to the church first.

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