you need to really understand the many factors of bitcoin economics to realise why even the most highly paid economic strategists of wall street have even bothered to invest billions in labour and research and operating budgets to get things like the ETF's activated and operating
i don't necessarily know why wall street would have any interest in bitcoin. nor do i care because bitcoin is not a company that has a product or service. it probably doesn't even belong on wall street. and these people you are talking about on wall street i doubt many of them even own any bitcoin at all. it's just something they talk about but don't really care about. why should they? bitcoin didn't make them rich. they got rich by fiat.