You can't make three or four spinners bowl the exact number of overs. You don't see the number of overs bowled by them before you make a bowling change; you see who looks effective and make a bowling change.
Globalization can be very unjust and unfair and unequal, but these are matters under our control. Its not that we dont need the market economy. We need it. But the market economy should not have priority or dominance over other institutions.