Perhaps a few organizations do put too much effort into fundraising, especially at the end of the year when people tend to be more generous. We've always tried to avoid this in our own organization, simply informing people of our needs and trusting God to lead them as they give.
All non-profit organizations (including churches and other religious groups) depend for their support on people's giving. But how will people know about them and give toward their work unless they tell them? You suggest they ought to spend their money on worthwhile projects -- but what if no one finds out about these projects and supports them? Even Jesus' band of disciples had a treasurer, and had people who supported them by their giving (see Luke 8:3).
Let me ask you a question: How much of your income have you given to God's work this year? Can you honestly say you've been generous -- or have you held tightly to your money and refused to help those who are helping others? The Bible says, "Whoever sows sparingly will also reap sparingly, and whoever sows generously will also reap generously.... God loves a cheerful giver" (2 Corinthians 9:6-7). I hope you'll take this seriously.
The key is to put Christ first in your life. Have you done this? He gave His life for you; should you not give everything you are and everything you have back to Him? Commit your life -- including your pocketbook -- to Christ, and then ask Him to guide you in your giving.