The someones at Google are compensated significantly by shares of the company, traded on Wall Street, and some of them are compensated with even more shares if those shares do well.

Pretending the two are at arms length is a bit silly.

Seems to me that the individuals involved would care more about getting extra shares than the expected increase in share price from this change.

The bonus might be significant, the increase in share price might be a percent or 2. Google dishes out this bonus, not Wall Street.