It's also important to acknowledge that these NPC corporations have a high tax rate so there's a financial incentive for players to leave these NPC corporations

It's also important to acknowledge that these NPC corporations have a high tax rate so there's a financial incentive for players to leave these NPC corporations for Player driven ones. Most player corporations have a lower tax rate, less than 10% or matching if there's a war on. Sometimes a corp will increase taxes to recoup war bonds but it's only temporary.