It's totally worth it if you're getting paid a good SWE or higher salary. You can run the numbers on odds of litigation and on expected costs/benefits.
Once you do it once or twice, you start being able to understand the legal code a little bit better.
And yes, it is a code. Employment contracts are overly broad, and then limited by statutory law. At one point, I had an OC tell me I was reading something wrong. I make it a policy never to take advice from an OC, so I called up my employment lawyer.
For once, OC was right.
That almost never happens.
The layman's read made the contract totally untenable, but what it meant was perfectly reasonable. This was years ago, but I think it was some overly-broad we-own-your-life clause (non-compete or out-of-work-time or similar, probably). Statutory law made such clauses of limited power in my state, and it didn't block what I wanted to do.