I don't work in IT and I'm not a developer, but IMO a developer should do the right thing even if that thing is not written in the specs/contract (transactions

I don't work in IT and I'm not a developer, but IMO a developer should do the right thing even if that thing is not written in the specs/contract (transactions and ledger in this case). It is not the job of the developer to care about the competitiveness of the company (Fujitsu in this case), contracts, money, etc.