No. They will not do that. No good VC would not force you to take a high salary if you would rather the money went into the business. They'd probably even like that. A founder should be setting the vision and culture of the company. Compensation is one piece of that culture. You set a precedent by taking a big salary and you set a message by taking a small one (i.e. Jet Blue - CEO, COO, CFO each have a base salary of $200,000 / turned down bonuses during bad years).
It's not a question of forcing. It's the norm. All other things being equal, why should someone take a lower salary?
And there are other factors. If your compensation becomes a benchmark for the rest of the team, now your company is in real trouble. You can't expect to hire key team members at less than the norm. It just won't happen. VCs know that.
Also, a VC's main job is to put out as much of their committed capital as possible into good deals. Allocating a large part of a preferred equity tranche to fund the maintenance and creation of a solid team is the right thing to do.
