Don't you realize much (most?) of LIC's growth is from businesses attracted to the area by various pre-existing government incentives, such as:
Commerical Expansion Program (tax abatements), Accelerated Sales Tax Exemption Program, Commercial Revitalization Program (property tax abatements), Commercial Rent Tax Special Reduction, Energy Cost Savings Program, Industrial & Commercial Abatement Program, Industrial Business Zone Relocation Tax Credit, NYCIDA Commercial Office Space Incentives, Open Industrial Uses Sales Tax Exemption Program, Qualified Emerging Technology Company Incentives (tax reductions), Relocation and Employment Assistance Program (tax credits), Sales Tax Exemption for Manufacturers
https://www.nycedc.com/service/financing-incentives
Whatever arrangements or incentives were made to build Cornell Tech, keep in mind that in addition, all donations to Cornell's $7 billion endowment are tax-deductible. I will take a wild guess that it is almost exclusively very rich people who benefit the most from this deduction.