Why is the overhaul of immigration laws of such interest to billionaires?

Political reports,

Downtowners continue to point to immigration reform as an area where there will be a lot of K Street spending. The issue touches virtually every industry — and many of the biggest spenders are wealthy individuals like Facebook’s Mark Zuckerberg and outgoing New York City Mayor Michael Bloomberg, who rely on their personal fortunes and whose commitment to Washington is less affected by short-term economic projections.

Even if proponents can’t gain traction in 2014, they will be setting the stage for the coming years, when most congressional watchers believe some action will be taken to overhaul the country’s immigration laws.