There's an argument to be had on the lasting consequences of uneven help, or even whether billionaire opportunism is net good for society, but yours doesn't look like a good starting point because it appears to demand perfect help or no help.
Perhaps people are susceptible to recency and trendiness; and perhaps Jeff Bezos also sees opportunistic political timing; and perhaps Jeff Bezos thinks that the uncertain future of hundreds of thousands is a bit tragic; or perhaps the nature of help is naturally uneven, because we are best equipped to help the few issues in front of us.
But your discussion narrowly starts with the character of specifically one Jeff Bezos.
Perhaps people are susceptible to recency and trendiness; and perhaps Jeff Bezos also sees opportunistic political timing; and perhaps Jeff Bezos thinks that the uncertain future of hundreds of thousands is a bit tragic; or perhaps the nature of help is naturally uneven, because we are best equipped to help the few issues in front of us.
But your discussion narrowly starts with the character of specifically one Jeff Bezos.