There was also some talk of how they are sinking lots of money into temples.
If you consider that Ensign Peak Advisors had a portfolio of $134B, and figure that a fancy temple might cost $13.4M, there was enough money there to build 10,000 temples. Maybe they are building 100 new temples at an expenditure of 1% of their stock portfolio.
The church's TOTAL assets are probably close to $1T, or $1,000,000,000,000. Them giving away $1M is like a millionaire giving away $1. If you had $10,000 and you gave someone a penny, it would be the same proportional expense.