I'm also not seeing the direct link between Mass Effect and Fallout 4, here. Obviously some mechanics have been copied - most notably the dialog, but I'd be surprised if they didn't also look to their combat when trying to see how other Action RPGs do it.
But androids have been a pretty common trope in pulp science fiction for... well just about forever. To be fair, the AIs in Mass Effect don't exactly behave like the synths we've run across in Fallout 3 and certainly it's too early to see what how it's handled in Fallout 4. But the Big Theme in Mass Effect was - "all artificial intelligence is evil and will try to destroy you." In Fallout 3, the question posed was more akin to Bladerunner - what makes someone human, and can a synthetic intelligence every be considered human?
That they both deal with artificial intelligence isn't a direct link (the topic's too broad.) I'm sure, as game developers, they looked at a lot of sources for inspiration. Why wouldn't you? But they appear to be posing very different questions. (In Mass Effect, AIs weren't even a question - it was just assumed that everyone was on the same page about them from the beginning.)