The "stand by your leader" philosophy of "The Tholian Web" only works in the TOS world of generally responsible adults.
Burying our heads in the sand is a path to ruin, when we should, instead, reach for the sky.
In some ways, the episode is reminiscent of Mission: Impossible, which, like Star Trek, began its third season in the fall of 1968.
There's nothing wrong, once in a while, with a little mindless entertainment.
The real problem with technology is never the actual hardware or software, but the people designing and using it.
Not only have the Kelvans assumed unfamiliar forms, but they are far removed from their own species and all the cultural influence associated with it.
The episode is primarily a study of two classic TOS themes: balance of power and risk.
The androids' ultimate undoing is their inability to comprehend the nuances of human desire and the unpredictability of human happiness.
Our actions will come back to us, sometimes sooner than we expect (or much later, where humpback whales are concerned).
Evil never gets tired. The burden is on the rest of us to guard against these forces and confront them whenever they rise up.