It would be very hard to implement a capitalism with even distribution.

By nature, this system leads to capital accumulation. Since no capital is infinite, accumulation in one place means removing it from somewhere else.

So you need mechanisms to always redistribute the capital to avoid this problem and balance the system.

But capitalists will battle these machanisms to gain efficiency, and you will be in a rate race between the redistribution measures and accumulation workaround.

Since creating new redisitribution mechanisms is way slower than implementing the workarounds, eventually the system won't be evenly distributed.

Hence the rat races between taxes, and taxe evasion.