Just another take on this whole thing:
The shelf life of an actor in a lead role is very limited. After a certain time period, roles start depleting especially with younger people joining the workforce.
People beyond a certain age,
a. Are approached for very limited roles and
b. tend to stick around due to longevity and stability.
Experimenting at this stage is very, very risky for individuals.
AfterALL, everyone has a home to run, bills to pay.
This is true for ALL salaried professions.
That being the case, depending on their popularity and reach, they may be signed under very carefully drafted contracts Which further limits their options.
So, why an actor continues on a senseless show, could be a combination of so many of these complications.
Why such senseless shows run and gain TRPs? Well that one never knows, may be not.
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