Why aren't we using the economic power of wealthy old farts and put dead bodies or ash inside space probes to investigate the vastness of space?

Those probes could even be send together with one carrier rocket to leave earths gravity before departing to different destinations and could be equipped with scientific tools.
Human ash weighs about 3 to 6 pounds, so 1000 small probes in one flight is a possibility.

This could be the dawn of a new era for space exploration.