Reducing capital investment as a proportion of the economy in itself is a worthy goal. Our whole system has been skewed towards the financial sector by preferential government treatment for years. We ought to correct that.
Though to be fair, it's not really productive capital investment that is being rewarded under the current system. Increasingly, the economy has become a debt economy where the servicing of debt is what greases the wheels. so to speak.
True. Things like lending a business money so it can expand is certainly useful and productive real economic activity.
Of course, the explosion of the financial sector recently is driven by a smaller and smaller proportion of real economic activity and more and more smoke and mirrors, cons and scams.