Almost all of the "raised in Japan" Japanese engineers I talk to end up being very tech focused, to a fault. Like really focused on the tech and almost never looking at the business end of things. Some even don't think about product dynamics (usability) and are basically one step away from researchers in terms of awareness about what "matters" in a business environment.
Meanwhile you have these people taking business classes being very "oh I would really like to start a block chain business", which... I mean I get it but why do you think any customer cares about the block chain-ness of your business???
You have technical people uninterested in business and business people who don't show real passion in product, just in the idea of running a business. There's probably an opportunity to bridge the gap but so far in Tokyo I've only seen stuff on the business end of things.
Engineering talent here seems rarely prodded to know their own worth or to explore the business end of things. Instead you have a lot of things for the business types to talk to other business types. The gap needs to be bridged and no one is doing it despite all the money in "startup incubation"