There are two ways to remove a Band-Aid : slowly and painfully, or quickly and painfully. Your choice.
Right now what I need to think about is what would be possible, not all the reasons I can't make a change.
Did my job really matter? A successful year would only help a rich company get richer. 
If that's what you want to do, then you should go do it-and do it well.
Did it really matter how many copies of Windows we sold in Taiwan this month when millions of children were without access to books? 