Tax records won't tell us anything about net worth, only income (although they would provide some clues unless he's a complete moron). They also can't tell us anything about charity except what he chooses to deduct -- he could be one of the most charitable people in the country and simply not choose to make it publicly known (stop laughing at me, I'm just saying it's possible).
You're wrong, see my earlier post regarding his business entities. Every partnership, LLC, and Sub-S tax return issues a Schedule K-1, which shows the capital position of each partner and shareholder. From there, you can piece together the amounts to arrive at a good estimate of his net worth.
I prepared tax returns for a living for the better part of 25 years, to include wealthy families with multiple layers of trust accounts for heirs. I also prepared hundreds of business tax returns, to include publicly traded corporations. My superiors at the FDIC relied on me to evaluate the financial position of those seeking to modify/restructure business loans assumed from failed institutions. That analysis consisted of reviewing multiple years of tax returns, often revealing unusual transactions within capital accounts. In one situation, an offeror's bid increased from $17 million to $28 million within 48 hours after I raised questions about their tax returns.
They still got a good deal, the original loan was $40 million, but that was before commercial real estate values collapsed in 2008. Our job at the FDIC was to maximize the return of funds to the Deposit Insurance Fund, not managing loan portfolios.
