It doesn't feel quite right to compare "good deeds" to "wealth" -- it's "apples to oranges" . If anything you want to compare two abstract concepts, like "health vs. wealth" or "love vs. wealth" or "generosity vs. wealth". Or, alternately, something like: "Good deeds are more important than hard cash".
"Beyond" is fine when used in the proper context, but you probably want to say "go beyond" instead. Again, I have trouble relating "good deeds" directly to "wealth", so something like:
"Acts of simple kindness go beyond the mere accumulation of things"
Or more succinctly:
"Good deeds far surpass gold"
or even better:
"Good deeds are pure gold"
But there are already many aphorisms that express this feeling:
"And in the end / The love you take is equal to the love you make" - The Beatles
"Kindness is the language which the deaf can hear and the blind can see." -Mark Twain
"The best way to find yourself is to lose yourself in the service of others." - Mahatma Gandhi