Define "education", "rich" and "need"! Is it mandatory to have a high level of formal education to make a lot of money? NO! There are indeed example of people with low levels of education becoming very rich with regard to making money.
However, "on average", people with higher levels of education make more money in their lifetime than those with lower levels of education. Being "rich" can certainly mean more than having a lot of money... as many others have pointed out!
In summary, I have bachelor, master, and Ph.D. degrees and, without doubt, I've made more money than I would have without those degrees. I worked in many "blue collar" jobs to pay the bills while earning those degrees and can unequivocally say that my "working conditions" are much MUCH better in my "white collar" job.