Can you please specify the meaning of "balance" here?

[jennie77]

Here are sentences

1. Politifact.com falsely claimed McCain opposed 2001 Bush tax cuts because they should be "balanced by spending cuts."

2. Social charter discussion should be balanced by prudential responsibility.

3. The damage by insecticides to birds and other animals that has been emphasized should be balanced by consideration of many thousands of human lives that has been saved by insecticides, especially in view of the newer insecticides that doesn't cause damage to environment as did early ones.

It's so complicated. Can please specify the meaning of each "balance" here?

[Rusty]

Here are sentences

1. Politifact.com falsely claimed McCain opposed 2001 Bush tax cuts because they should be "balanced by spending cuts."

2. Social charter discussion should be balanced by prudential responsibility.

3. The damage by insecticides to birds and other animals that has been emphasized should be balanced by consideration of many thousands of human lives that has been saved by insecticides, especially in view of the newer insecticides that doesn't cause damage to environment as did early ones.

It's so complicated. Can please specify the meaning of each "balance" here?
Balanced is used to compare, the two things mentioned.
1. tax cuts versus spending cuts.
2. discussion versus (taking) responsibility.
3. damage versus lives saved.
The comparison considers the advantages and disadvantages of each.

[archfiends]

Balanced is used to compare, the two things mentioned.
1. tax cuts versus spending cuts.
2. discussion versus (taking) responsibility.
3. damage versus lives saved.
The comparison considers the advantages and disadvantages of each.

The comparison considers the advantages and disadvantages of each.

just so, and seems a little emphasize in the latter one which may less concerned or mentioned before.

[Rusty]

The comparison considers the advantages and disadvantages of each.

just so, and seems a little emphasize in the latter one which may less concerned or mentioned before.
Yes, the fact that the first thing mentioned needs to be "balanced" suggests that there may be disadvantages.