The way you are framing it, it sounds like Lindgren did a bad thing in criticising the Social democrats, but in the end she remained committed to socialism, so she ended up on the "safe side".
Or being "good socialist" is one end of the scale, and "bad fascist capitalist" is on the other end. That doesn't make much sense, as that is mixing up two different scales. Fascism is a political system (could be described as a militaristic nationalism) that is opposed to democracy, while capitalism is an economical system.
In fact, what Lindgren did remain committed to was not really socialism, but rather a form of social democracy with a "mix" economy including both state and private ownership - which is what Swedens Social Democratic party came to represent in the 1990s.
