I just think selling an insurance policy under the guise of an investment product is the crux of the issue from what you described.

Everybody also got KPI to hit, mouths to feed at home.

Banks do make it very convenient as a one-stop center for deposits, loans, investments, etc.
Which is good.

Just like how you buy a new car from your local dealer, which most probably is also a 4S center where you go for your regular services, paint & body workshop as well.
Yet it doesn't stop you from going to your local workshops either for other lubcricants, oils, whatever it may be, from brands that you just prefer or trust.

So it's not a matter of who is more ethical.
There are one stop centers that can cater for a full range of services, there are also boutique shops with competitive services, and also specialty shops.

There is also no stopping any of them from engaging each other for fulfillment.

Well, to be fair, they are only selling products on behalf of the insurer.
Just like how telco providers are now selling phones on behalf of the device companies.
Any and all defects and/or warranty claims should rightly be directed back to the device companies.

With that said, again, every classroom you will get the top scorers as well as the ones who may need a bit more help.

There will be good apples and bad apples everywhere lah.
Itu biasa kan?

Then... maybe choose to buy from Life Planners?