There are a bunch of civs that are very much focused on one type of victory, Sweden is such a civ. Sure you can win any type of victory with Sweden not just a diplo-win, just as you can win a diplo-win with Attila. If you go for a diplo-win, you don't need every single GP you got (and Sweden get more of these, usually). You only need a decent amount of tourism (for defence), you only need tech fairly into the endgame combat techs (depending on your enemies), for Engineers, well those wonders that exist in the endgame are few that benefit a diplo-win so. Since you need friends you will only go to war with friends (against a common foe) so at most, you will only need one general.
If you go for a Science win, then the same can be said about writers and generals but here you will probably need your engineers and scientists but the rest can go.
For domination victory you can still send your writers, merchants and other crap down to the CS.
The only bad victory for Sweden is cultural. Here you actually need all your writers and artists and such. But since you will go for Airports and then towards the internet there are still GP that you can send.
Edit: This all depends on what type of player you are. There are players that just want everything. They have a tourism of 800+, not because they want to win a cultural-win, but because they want everything and can't let go (these people usually come to the forums and rant about that they have won a cultural-win but they intended a science-win). Then we have players that can see what they need and have the guts to let go of what they don't.