Since when is charisma a bad/useless stat.

see, I noticed charisma one gives essential scam-level trading and it takes forever to come along and get good stats, and when speech and barter are high, two semi-big obstacles have been made easier, plus, you can get euclids c-finder for a bargain with barter 45+, get double pay for retrieving the chip, etc. am I not wrong? The one valid argue is the nerve being bugged, but still.