If there was any doubt about the commercial real estate industry’s impact on northern New Jersey, this year’s Meadowlands Chamber Legacy Awards Reception was a clear reminder. The organization hosted the annual gala on Oct. 12 while marking the 50th anniversary of its founding. Fittingly, it also unveiled a list of the 50 most influential people in the region’s history — including more than a dozen iconic developers and real estate service providers, from Jerry Gottesman and Jon and Peter Hanson to Gretchen Wilcox and Dave Gockel.