I'm sure there are other reasons, or I might be misinterpreting this statistic, but NAR is listed as the #1 lobbying spender in the US in 2022. They and #2 (US Chamber of Commerce) each spent over 3x the third-place organization, and they spent more than 4x the top tech company (Facebook).
https://www.statista.com/statistics/257344/top-lobbying-spen...