I don't see that the Prime Directive in TOS is different than in TNG and onward. I think Captain Kirk probably got caught in more "corrections" than we saw in TNG, but I can think of few outright violations of the principal -- excepting when the Enterprise crew was pulled into a conflict against their will, like in A Taste of Armageddon.
I'll grant that TNG seemed more than a little pretentious about such things, but TOS had its moments too. All things considered, though, I'd much rather listen to Picard lecture Crusher about the correctness of the Prime Directive than sit through Kirk reading the US Constitution as if he was a Southern Baptist preacher reading the Bible.
On topic, did DS9 ignore the Prime Directive? In some cases, yeah. In the Pale Moonlight is probably one of the more glaring examples; but it's one that I think the writers handled well enough. Maybe the Prime Directive wasn't mentioned specifically, but I think Sisko wasn't at all callous about his involvement in a conspiracy to commit individual murder or to manipulate events in a way that would certainly result in thousands -- if not millions -- more deaths.
I disagree with the OP's assertion that For the Uniform was a Prime Directive violation. The Maquis were not some kind of external power, but rather an unrecognized separatist faction of the Federation. Poisoning the atmosphere of Solosos III might have been an environmentally dubious choice -- and certainly a shocking one for a morally righteous Starfleet captain to make -- but I don't think it runs afoul of the Prime Directive at all.
I'll grant that TNG seemed more than a little pretentious about such things, but TOS had its moments too. All things considered, though, I'd much rather listen to Picard lecture Crusher about the correctness of the Prime Directive than sit through Kirk reading the US Constitution as if he was a Southern Baptist preacher reading the Bible.
On topic, did DS9 ignore the Prime Directive? In some cases, yeah. In the Pale Moonlight is probably one of the more glaring examples; but it's one that I think the writers handled well enough. Maybe the Prime Directive wasn't mentioned specifically, but I think Sisko wasn't at all callous about his involvement in a conspiracy to commit individual murder or to manipulate events in a way that would certainly result in thousands -- if not millions -- more deaths.
I disagree with the OP's assertion that For the Uniform was a Prime Directive violation. The Maquis were not some kind of external power, but rather an unrecognized separatist faction of the Federation. Poisoning the atmosphere of Solosos III might have been an environmentally dubious choice -- and certainly a shocking one for a morally righteous Starfleet captain to make -- but I don't think it runs afoul of the Prime Directive at all.