Leverage is useful if you know how to use it. In fact, without leverage it's possible to trade forex for small investor. It is because of the leverage we can open good size lot. To open a .05 lot, you would need 5000$ cash.
High leverage doe not necessarily mean higher risk. As long as you know how much value you are investing, it is the same. Leverage just demand your minimum dollar to buy your product. Yet ultimately it is all the same the value of leverage of 100 or 500.
If utliised properly with a sound risk management strategy then yes leverage is very important. The double edged sword nature of it though is that if your risk management is poor, you can blow your account quicker.
If you can't spot the liquidity then you are the liquidity.