If you want to advance in accounting, then yes, it's almost required to get your CPA at some point.
If you are happy limiting yourself at the manager level, or equivalent depending on company size or fund strategy/AUM, then it's not necessary.
Financial services can be lucrative since the industry is unique and not many people have that same skillset. The opposite is also true. Since your skills become very specialized over many years, your value to non-hedge funds or non-financial services entities will decline somewhat over time until you reach the executive levels where skills are more transferable.
At the end of the day, interest in the industry and your specific employer should drive your decision.
Do you feel your company grows people and are you happy with what you see as possible careers? Personally, I would hate hedge fund administration, but many other people love it and find it interesting.
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