How specifically would you expect a typical SV corp's policies to change if employee equity passes from 49% to 51%?
Remember, if employees own 49%, if they can persuade just 2% of the other shareholders that a change will be positive for the business, they can make that change. So minority vs majority is not as significant as it may seem.
What changes is democracy in the work place.
You are confusing owning minority equity with what actual control gives you —- actual ownership of capital/MoP/assets/profits