
People don't like batteries
Rather than relying on a battery, which isn't something people want in their bodies, the transmitter harvests power by converting radio frequency waves into direct current, using cavity-resonator based magnetic resonance coupling.
Public ignorance seems a very feeble justification. What are you going to do when the idiots learn that the makers of the silicon chip deliberately doped it with lethal poisons like phosphorus or arsenic, or that it radiates microwaves like 5G base stations do?