This kind of supernatural power, which could be inherited through bloodlines and eventually elevate an entire civilization, was simply too precious.
It might not have been obvious yet, but after some time, when most people possessed chakra, those without it would be little different from the disabled. Many jobs would have nothing to do with people who lacked chakra.
Take construction, for example. Once earth-style ninjutsu requiring only a tiny amount of chakra had been developed, people without chakra would be shut out of the industry. Why mix cement by hand? One ninjutsu could do it in seconds, followed by a group technique—Cement Control Technique, Earth Style: Brick Control Technique.
Or, more simply, as long as a ninjutsu capable of reshaping stone was developed, skyscrapers could rise from the ground on the spot.
Building a tower in a few days would no longer be a fantasy. Could ordinary people do that?
Moreover, although chakra, this supernatural power, had its limits, even its strongest users were no less terrifying than living high-yield nuclear bombs. Wakanda possessed the world's largest vibranium mine.
In the past, even if the outside world had learned of Wakanda's existence, they had possessed enough strength to protect themselves. But things were different now. In an age of super-soldiers everywhere, there was no need for powerful ninja to invade. All it would take was sending in a few ninja injected with Sacred Blessing Serum, with powerful infiltration abilities, to slaughter Wakanda's royal family. Their nation would be finished.
After all, even the Black Panther, enhanced by the heart-shaped herb, had no power to resist such ninja. He was too weak. Even vibranium armor would not help. Ordinary people like them, who had not been injected with Sacred Blessing Serum, were too fragile. A random group of chakra-wielding ninja